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2011年8月5日星期五

Top best tablet computers in 2011


As the world becomes more mobile, so do computing needs. Tablet computers are an excellent option for people on the go. They also offer a great variety of applications to enhance the experience. Here is a look at some of the best tablet computers for the money.

The Apple iPad 2
The iPad is still a very popular model, as they have many important features that users want. The updated iPad2 is somewhat thinner than its predecessors and has two cameras, one in front and also in the rear. You get wireless 3G Internet along with a powerful processor. However, not all things will work well with Apple, as Flash is not available. Also, you will need an adapter for things like USM and HDMI.
Asus Eee
If you are in need of something inexpensive, you might wish to look closely at a Asus Eee Pad Transformer. It is a low cost Honeycomb computer, and this means that you have all the benefits of its Android operating system. The computer is longer than most of the competition and provides crisp and clear screen resolution. You can get an inexpensive keyboard or a dock for this model, also. However, lower price means that you may not like the video quality of the camcorder, and its only Internet is WiFi.
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Samsung Galaxy Tab 10.1
A Samsung Galaxy Tab 10.1 will give you a thin and very lightweight mobile computer. You also get very strong speakers. Yet, there are not many ports and this can be frustrating for some users. However, you may need something small yet powerful, and this can be a good choice.
T-Mobile G Slate
This Honeycomb model has 4G support, and also features streaming television. This model has a little bit smaller screen size than the other top tablets. However, it be a little easier to hold on, due to its size. It is just as easy to type, whether it is in landscape or portrait mode. You also get Flash support and Bluetooth technology.
This model is very good, but you may need to sign up for a two year contract with the provider. Otherwise, this may be too expensive for many people. However, if you do not mind the two year commitment, you can get a great deal for your money.
The Blackberry PlayBook
If you need something that is small and powerful, the Blackberry PlayBook may be a very good option. It features a seven inch screen and HDMI capabilities. The standard model comes with 16 GB capacity, but for a little extra, you can go up to 64 GB. The main issue with this model is its small size. However, for some users, small size is not an issue.
Summary
If you are shopping for a mobile computer, you may wish to look at some of the best tablet computers. There is a great variety of size, in models that range from the Apple iPad to the Blackberry PlayBook. Some of these models will have everything that you need, and others will have more power and size. Whatever your needs, take some time when you shop. This way, you can explore all of the differences in features.


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2011年5月18日星期三

Cylindrical cell batteries are the most common types of batteries

Cylindrical cell batteries are the most common types of batteries used in household devices. These batteries typically come in standard alkaline form, but some also come as nickel-based rechargeable batteries. The size of the battery, labeled by its letter class, determines how much power it stores, which is measured in amp-hours.Hp 315338-001 battery
AA batteries are among the most common types of cells used. A AA battery measures 2 inches in length, including its button-like positive terminal, and just over 0.5 inches in diameter. AA batteries usually have a voltage of 1.5 volts, though nickel-cadmium and nickel-hydride usually have a 1.25 voltage and nickel-zinc has 1.65. Alkaline batteries usually have a maximum charge of 2900 amp-hours; lithium and nickel hydride batteries
(Hp pavilion dv6 battery,Dell latitude d830 battery) can have up to 3000 amp-hours, while nickel-cadmium and zinc-based batteries usually have 1500 or less. AA batteries are often use in portable electronic devices like hand-held CD players and video games consoles.
AAA batteries are very similar to AA cells, but more compact. These batteries are 1.75 inches long and 0.41 inches in diameter. Like AA batteries, they carry a voltage of 1.5 volts. AAA batteries usually have a maximum charge of 1200 amp-hours; zinc and cadmium-based batteries can drop to around 500 amp-hours. These batteries are for devices that don't require as much power as those that use AA cells. They are found in the same type of devices as AA cells, such as portable electronics and remote controls, but they are more efficient in power consumption.
C cell batteries are noticeably larger than AA and AAA sizes. They are two inches long and just over 1 inch in diameter. These batteries' voltage may vary from the standard 1.5 voltage depending on their chemical compound. The alkaline form of these batteries normally store 8,000 amp hours; nickel hydride batteries usually have 6,000 while zinc-carbon batteries have less than 4,000. C batteries are often used in larger children's toys and musical instruments.

Did you know that detaching your main laptop batteries from your laptop would increase your laptop's battery life up to 75%? Our experience and testing have shown that even when you are plugged in with your laptop ac adapter and your battery is fully charged, the laptop will still use the laptop battery resources in small increments. This will put unnecessary charge cycles to your battery. Since typical li-ion laptop batteries have 375 charge cycles, having a fully charged battery inserted will put unnecessary charge cycles. The downside to removing your laptop battery maybe a loss of power when the ac adapter is accidentally unplugged or when there is a power outage.


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2011年4月20日星期三

Apple inked a deal with a third supplier of touchscreen sensors for iPad

Apple has reportedly inked a deal with a third supplier of touchscreen sensors for its iPad 2 as rumors of "second-rate" computer parts hitting the Asian supply chain surfaced among Taiwanese component makers on Tuesday.
Foxconn Technology Group affiliate Chimei Innolux will start supplying Apple with iPad 2 touchscreen sensors in May, Bloomberg reported, citing "people familiar with the matter."
Taiwan-based TPK and Wintek will remain as suppliers of  Touch Screen sensors to Apple, the wire service reported. Foxconn, also headquartered in Taiwan, assembles the iPad and iPhone for Apple.
A Chimei Innolux spokesperson said the Foxconn affiliate expects to offer its touchscreen sensors to "major customers" but declined to comment on a deal with Apple, according to Bloomberg.
Meanwhile, a components shortage caused by the aftermath of the March 11 Japanese earthquake and tsunami has led to the delivery of "second-rate" computer parts in parts of the supply chain,according to DigiTimes.
Some upstream suppliers of chemical raw materials and parts such as capacitors and power supply components have delivered inferior product to clients of late, the Taiwanese technology journal quoted unnamed sources as saying.
The delivery of inferior and defective PC parts has been "a constant problem and has been for decades," said Jon Peddie, president of Jon Peddie Research.
"There was a crisis a few years back with inferior capacitors failing and wiping out Toshiba pa3534u-1bas battery,Hp pavilion dv6 battery motherboards and graphics boards," he said.
In the face of the current product quality situation, downstream component players have been increasingly using cash to stock up on inventory and securing more supplier sources, according to DigiTimes.
The rumored delivery of second-rate product has affected the mainstream PC supply chain and no mention was made by DigiTimes' sources of problems with components for devices like media tablets and smartphones.
Apple’s Japanese suppliers are delivering.
On that final point, Cook said:
Regarding our global supply chain, as a result of outstanding teamwork and unprecedented resilience of our partners, we did not have any supply or cost impact in our fiscal Q2 as a result of the tragedy, and we currently do not anticipate any material supplier cost impact in our fiscal Q3. To provide a bit more color on this, we source hundreds, literally hundreds, of items from Japan, and they range from components such as LCDs, optical drives, NAND flash and DRAM, to base materials such as resins, coatings, and foil that are part of the production process of several layers back in the supply chain. The earthquake and subsequent tsunami and the associated nuclear crisis caused disruption for many of these suppliers. And many unaffected suppliers have been impacted by power interruptions. But since the disaster, Apple employees have literally been working around the clock with our supplier partners in Japan and have been able to implement a number of contingency plans. Our preference from the beginning of this tragedy has been to remain with our long-term partners in Japan, and I have to say they have displayed an incredible resilience that I’ve personally never seen before in the aftermath of this disaster. So, while we do not anticipate — currently anticipate any material impact to our component supply or costs in our fiscal Q3, we do need to caution everyone that this situation remains unpredictable given recent aftershocks, the uncertainty about the nuclear plant, and potential power interruptions. Further, there are some supply risks that are beyond the current quarter. And although we know of no issue today that we view as unsolvable, the situation is still uncertain and there’s obviously no guarantees. For this reason, it’s difficult to predict whether the issues created by the tragedy would impact revenues beyond Q3. However, I’ll be happy to address Dell inspiron 6400 battery,Dell latitude d820 battery Q4 on our next call in July.
Instead, Apple's reported addition of a third touchscreen sensor supplier may be attributable torevised analyst forecasts and bullishness in the market for better-than-expected shipments of the iPad in 2011.
Meanwhile, Seagate executives discussing a proposed $1.375-billion acquisition of Samsung's hard drive business Tuesday said current constraints on disk-drive supply were due to "pure demand," with little impact from the Japanese earthquake.

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2011年4月19日星期二

Tablet PC Pen Usage Tips

Tablet PC Pen Usage Tips by www.wholesaleeshop.com.au

A Tablet PC may or may not have a keyboard, but it always has a digital pen or stylus that serves as a replacement for the mouse and keyboard. However, a digital pen must be calibrated with the Tablet PC every time for it to work properly. There may be times that the Tablet PC does not respond to the tap of your digital pen, which means you need to calibrate it again.
Tablet PCs are computers with touch screen capabilities that require the use of a tablet pen in order to operate. The tablet PC pen and tablet PC communicate with one another so that you can utilize the full capabilities of the tablet technology. Using a tablet pen is one of the greatest advantages of using a tablet PC, but only when you know how to properly get the most out of the device.
Calibrate the pen before you use it for the first time. The tablet PC should contain a calibration program that will ensure that you are properly set up and ready to use the pen. Make sure that you are calibrating the pen for your dominant hand. The tablet PC and pen have to become accustomed to you, just as you have to become accustomed to them. If another user is going to use the tablet PC and pen, make sure that you recalibrate it for her use as well. The pen may needDell inspiron 1300 battery,Dell inspiron 1520 battery to be recalibrated any time calibration settings are changed.
  • Before the first use of your Tablet PC calibrate your pen.
  • Choose the correct handedness the first time you use your Tablet PC.
  • Set up pen settings on a user basis.
  • After changing calibration you may have to re-calibrate the pen.
  • In order to use the pen in MS Office XP you will have to download and install the MS Office XP Pack for Tablet PC.
  • Hold the pen in the same way that you hold a regular pen.
  • Write using an even speed and don’t use all capital letters.
  • You can rest your wrist on the screen as you are writing.
  • Watch the location of function buttons on the pen and make sure compaq dv2000 battery,Dell d630 battery you aren’t pressing them while writing.
  • Position your pen so that the function buttons are facing the palm of your hand while writing and move it around when you need to use the function buttons.
Always watch that the monitor of your Tablet PC does not go in contact with other hard objects since one that part is damaged, no amount of pen calibration will make it work again.

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2011年4月7日星期四

Motion of the human body create the power equivalent of two double-A batteries

Motion of the human body create the power equivalent of two double-A batteries

Could your body replace mobile-device batteries? Researchers have developed a way to create the power equivalent of two Hp dv1000 batteries, using nothing more than motion of the human body.
Anything from walking to a standing heartbeat could produce energy that is captured and used by nanogenerators, according to a team of scientists from Georgia Institute of Technology. This research, presented at a meeting of the American Chemical Society, demonstrated how a small, flexible chip containing millions of tiny wires—500 times thinner than a human hair—could use the human heart to create electrical energy. The researchers used a nanogenerator to power an LED light and LCD Monitor.
Any kind of bodily movement could theoretically be used to generate power, and nanowires can also generate electricity in response to wind, rolling tires, or other kinds of motion. The technology is not new, but these most recent findings do signal a breakthrough.
According to a report of these findings from the American Chemical Society, five nanogenerators stacked together can produce about 1 micro Ampere output current at 3 volts—about the same voltage generated by two double-A Hp dv9000 battery(about 1.5 volts each).
Researchers are convinced the technology has a future. “While a few volts may not seem like much, it has grown by leaps and bounds over previous versions of the nanogenerator,” said the project's lead scientist, Zhong Lin Wang. “Additional nanowires and more nanogenerators, stacked together, could produce enough energy for powering larger electronics, such as an iPod or charging a cell phone.”
With how things are working out for this technology and at the pace that it's being developed, you could soon be powering up your electronic gadgets simply by moving your body and going about your daily tasks just as you do today.
A nanogenerator is actually a flexible chip that is comprised of zinc oxide (ZnO) nanowires which are piezoelectrics. These can generate an electric current when subjected to any strain which can virtually come from any body movement such as walking or reaching over to pick something up. This sort of technology has been around for a long time but the currents generated were so weak and not powerful enough that it wouldn't have made sense to take it to the next level then.
The team of scientists headed by Dr. Zhong Lin Wang delved into the nanogenerator's inner workings and have found a way to multiply the power output of the device by thousands of times, which is why the technology can finally be put to good use outside the laboratory.
“This development represents a milestone toward producing portable electronics that can be powered by body movements without the use of Hp dv8000 batteries Hp 484170-001 laptop batteries or electrical outlets,” Dr. Zhong Lin Wang explained. “If we can sustain the rate of improvement, the nanogenerator may find a broad range of other applications that require more power."Hp v6000 laptop battery from wholesaleeshop.com.au
The study was funded by the Defense Advanced Research Projects Agency of the U.S. Department of Defense, the Department of Energy, the National Institutes of Health, the U.S. Air Force, and the National Science Foundation.
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2011年3月31日星期四

How to Maximize your Google Android battery life by wholesaleeshop.com.au

How to Maximize your Google Android battery life by wholesaleeshop.com.au

Thankfully, with planning and insight, you can maximize your Google Android battery life. Follow these tips and tricks to get the most out of your Google Android device from wholesaleeshop.com.au.
Manage Android Wireless Radio Options Wisely
The majority of new Google Android smartphones and tablets pack a variety of wireless radios: a cellular radio for mobile network connectivity; a Wi-Fi radio; GPS; and Bluetooth; etc. And all of these radios can--and will--drastically reduce your Android battery(Dell gd761 battery) life if not used and managed wisely.
You should turn off all wireless radios when you're not using them. When you leave home and go out of range of your personal Wi-Fi network, turn off Wi-Fi so it doesn't constantly attempt to detect or connect to other networks. And when you're done using that Bluetooth headset, switch off Bluetooth. The same goes for GPS.
Some location-based applications and services require that you activate your GPS to function properly. But some of them also constantly attempt to pinpoint your location, even when they're not in use, by contacting the closest nearby satellites or cell towers and draining your precious battery life in the process.

To disable wireless radio options, open your Android Settings, click Wireless & networks, and "un-check" the boxes next to the radio-options you're not currently using. To turn off GPS, open the Location & security settings page within Android Settings, and remove the check from the box next to Use GPS Satellites.

It's also a good idea, from a Dell latitude d830 battery -life- and security-perspective, to turn off any mobile hotspot services your device may offer when they're not in use. You can turn mobile hotspot on and off within the Android Settings menu.
Many Android devices let you create home screen widgets for each wireless radio so you don't need to dig through your settings every time you want to turn them on or off.
Conserve Android Battery by Minimizing Screen Brightness, Timeout
As a general rule of thumb, the brighter your Android screen, the higher the drain on your battery. Some types of displays are more energy efficient than others, but it's still a good idea to reduce your screen brightness to the lowest comfortable level to conserve power. And you can also reduce the time it takes for your display to power itself down when not in use to maximize Dell kd476 battery life.
To reduce your screen brightness, open up your Android Settings menu, click Display. Depending on your Android OS version, you may see an option for Automatic Brightness. This setting automatically dims or brightens your display based on the surrounding light levels. But it can drain the battery by randomly increasing screen brightness.
Uncheck the Automatic Brightness option to manually increase or decrease your screen brightness, and then find the lowest setting that will work for you.
To shorten your screen-timeout, open the Screen timeout menu within your Android Settings, and choose one of the lowest values.
Reduce Unnecessary Notifications to Save Android Battery
Do you use an audible alert or vibration--or both--to notify you of new text messages, e-mail, Twitter "tweets," etc? If so, you should know that you're slowly eating away at your Android battery life with each chirp or buzz.
It's okay to use some notifications, and they can be very valuable when used efficiently. But the problem comes when you excessively employ various types of notifications when they're not really providing any value.
In general, vibrations use slightly more power than audible alerts, so first, reduce any unnecessary vibration-alerts to maximize your Android battery life. To do so, open up the Sound settings in your Android Settings menu. Under General, click to open the Vibrate options and choose a setting that reduces your vibration-alerts, such as Never, Only in Silent Mode or Only When Not in Silent Mode.
In the same General settings menu, you have the option to reduce your ringtone, media and alarm volumes. Doing so will increase battery life since every sound that goes through your device's speaker drains valuable power. Just click Volume and reduce each option to the lowest setting you feel comfortable with.
How to Improve the Battery Life on Your Android Phone
Depending on your Android OS, you may also see some options on the Sound Settings page to enable/disable audible touch tones, audible selections, screen-lock sounds, etc. Turning off any or all of these options will also help conserve Android battery(Dell inspiron 9400 battery).
Finally, you can reduce unneeded vibrations by disabling any keyboard feedback option you may have activated. Some types of keyboards have different feedback-options, but typically you can disable sounds and vibrations by opening up the Android Settings menu, then clicking Language & keyboard. Next, open up your specific keyboard settings and uncheck the boxes next to Vibrate on keypress and Sound on keypress.
Keep Android Battery Connections Clean
Over time, the battery connections within your device can gather dust and other particles and impede the transfer of power to your hardware. Every few months, it's a good idea to remove your battery and wipe clean the small sections of metal through which battery power is transferred, as well as the metal prongs inside your device's battery slot that connect to the power supply.
Those prongs are delicate, however, so you should be very careful cleaning them. Q Tips and cleansing wipes made specifically for electronic gadgets work well, though they can leave residue, so you should ensure both surfaces are clear before replacing your battery.
Finally, your battery will become less efficient over time, so it is occasionally necessary to buy a new one. If your battery is a year or older, and you've determined that its poor performance can't be attributed to a weak cellular connection, a power-hogging app or a similar issue, you may need to replace it.


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2011年3月23日星期三

Top tips to help speed up Vista by www.wholesaleeshop.com.au

 Top tips to help speed up Vista by www.wholesaleeshop.com.au
 Windows Vista got bad press due to its stability issues, but after Microsoft released a few services packs, the operating system became stable, trustworthy and not half bad.

If you have a Windows Vista machine in the house and you want give it a performance boost, there are a number of simple ways to do so.

Here are our tips to help speed up Vista.
1. Turn off automatic defrag
Having a well defragmented disk improves performance, but background defragmenting can slow your machine down temporarily. Vista schedules disk defragmenting by default. However, you may need to use your PC while it's carrying out this task. You can do this, but there'll be a performance hit.
defrag
If this is likely to be a problem, turn off scheduling by launching Disk Defragmenter, then clearing the box marked 'Run on a schedule (recommended)'. You'll need to run Defragmenter manually, so remember to do it once a month.
2. Optimise SATA hard drives
Most PCs running Windows Vista will have SATA hard drives installed. If yours does, you can improve its performance by enabling Advanced Performance on the drive.
Do this by launching Device Manager (click 'Start', right-click 'Computer', select 'Properties' and then choose 'Device manager' from the left-hand pane) and expanding 'Disk drives'. Right-click your SATA drive and then choose 'Properties'. Move to the 'Policies' tab.
Write caching should already be enabled on the disk, but you'll need to tick the 'Advanced Performance' box.
Remember, you should only apply this change on laptops with batteries, or desktop PCs with uninterruptible power supplies, because it's possible to lose data during a write operation if there's a power failure.
3. Enable Reliability Monitor
reliability
It's always a good idea to monitor your system to see if your activities have added to its stability or, more likely, degraded it. The Reliability Monitor displays a helpful graph that shows system stability over time, so you can see how each action has affected your computer.
To launch it, open Control Panel and choose 'System and maintenance | Performance rating and tools | Advanced tools | Open Reliability and Performance Monitor'.
Now choose 'Reliability Monitor' in the left-hand pane. Below the graph is a system stability report that lists each of the most recent events and failures for you.
4. Check the Event Viewer
Event viewer
Event Viewer helps you identify any processes that may be failing and introducing delays into the system. To access it, click 'Start', then right-click 'Computer' and choose 'Manage', then opt to continue. This launches the Computer Management console.
Now select 'Event Viewer', followed by 'Windows Logs'. Here, you'll find logs for Applications, Security, System, Setup and Forwarded Events. Select one of these logs to see each recorded event. These events are provided in order, with the most recent one appearing first.
Any errors are flagged for your attention with an icon showing a white cross on a red background, while warnings are illustrated with a yellow icon. Right-click an event and choose 'Event Properties'.
The resulting dialog presents details of the event, including a brief description of what happened, plus a link to further information if any is available.
5. Identify problems with a System Health Report
In Control Panel, choose 'System and maintenance | Performance information and tools | Advanced tools'. Click 'Generate a system health report' and select the option to continue if prompted.
The tool collects information from the Reliability and Performance Monitor to make the report. This lists potential problems like low disk space and suggests fixes.
6. Download Autoruns
Autoruns is a zip file, which you'll need to extract before you can run it. Open it in Vista and extract all the files.
Now launch 'Autoruns.exe'. Each tab displays software that runs automatically according to category. The 'Logon' tab shows those that start when you log into Windows. This includes software that's part of Windows itself, so take care when making alterations.
To disable an entry, select it and clear the tick box next to it. The 'Drivers' tab shows all the device drivers installed on your system. To see if a driver is causing problems, disable it by unticking its box. To delete an entry completely, select it and choose 'Entry | Delete'.
7. Defrag the Registry
Improve performance by optimising the Registrywith the free registry defragmenting tool Registry Defrag. When it's installed, launch the program and click 'Analyse Registry'.
Free Registry Defrag takes a few minutes to examine your Registry. It calculates how much space can be saved by defragging and compacting it. You'll see an estimate of the saving once analysis is complete.
Click 'Compact/Defrag Registry'. Once the process is complete (it may take a while), you'll be asked to reboot your computer to put the new leaner, meaner Registry into use. Click 'OK' to do so.
8. Disable printer sharing
Windows Explorer can slow down while it looks for shared printers. If you don't need to share a printer, you can claw back speed by turning off printer sharing. Choose 'Start | Network | Network and Sharing Center'. Click the icon next to 'Printer sharing' to turn it off .
9. Trim Start menu search
Trim search
There are several ways to improve the speed of start menu searches. First, remove Messenger chats and emails from the search.
Go to Control Panel and choose 'Appearance and personalization | Customize the Start menu | Customize'. Scroll to 'Search communication' and clear its box. You can also opt to exclude favourites, history and your files here if you wish.
10. Indexing options
Indexing your hard drive hits performance, but makes finding files and folders much faster. It makes sense to ensure that only the areas of your hard drive that you're likely to search are indexed.
Click 'Start', and type indexing options into the search bar and press [Enter]. This shows the current locations that have been indexed. To change these, click 'Modify', followed by 'Show all locations'. Clear the boxes next to any of the locations that you don't want to index.
This will make them harder to search, but will improve general performance. You can always reinstate any area that you need to search later on.
11. Use advanced indexing
You can also opt to remove certain file types from the index to improve search speed and reduce the performance hit background indexing can create. Go back to Indexing Options as above and click the 'Advanced' button.
This launches a dialog that enables you to change more indexing configurations. On the 'File types' tab, you can opt to add or remove certain file extensions from indexing. Consider removing executables and files that you're unlikely to search for.
12. Turn off indexing
If you're convinced that you'll never want to search your hard drive, you can gain a little performance by disabling indexing. Indexing uses up system resources which could otherwise boost performance. For most users, the minor hit on performance is more than enough to compensate for being able to find the files they want quickly.
However, you can turn it off if you want to squeeze out a little more performance. Click 'Start | Computer' and right-click your hard drive. Choose 'Properties'. and on the 'General' tab, clear the box marked 'Index this drive' for a faster machine in the future.
13. Deactivate User Account Control
User Account Control puts in a layer of security that stops you from making system changes without confirming them. However, if you're an experienced user, it can simply serve to slow you down.
To turn this feature off , open Control Panel and choose 'User Accounts and Family Safety | User Accounts | Turn User Account Control on or off .' Clear the box marked 'Use User Account Control' to protect your computer. Click 'OK' and reboot.
14. Remote differential compression
This is a useful service if you move files around a network a lot, but if you don't, it uses up resources needlessly.
Open 'Control Panel', followed by 'Programs'. Choose 'Turn Windows features on and off '. Clear the box next to 'Remote differential compression'. Click 'OK'.
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