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Enable Readyboost on Any Unsupported Flash Memory Deviceww

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Windows Vista has incorporated with a new feature called ReadyBoost, which allows to use compatible Hi-speed USB flash drives as cache instead of the hard drive in your computer.This ReadyBoost feature makes your computer faster because it has been shown that small random reads and writes on a USB flash memory can be 10 times faster than caching them to one of your hard disk drives. In order to get the full benefit from this new feature, Microsoft suggests that you provide enough space on a USB flash drive for ReadyBoost so that you are in at least a 1:1 ratio with your installed physical RAM. You will also need to use USB flash drives that meet the following specifications:

  • USB flash memory has at least 1GB of storage capacity
  • The flash memory device used must have at least 512MB of free space
  • 5 MB/sec throughput for random 4k reads across the entire device
  • 3 MB/sec throughput for random 512k writes across the entire device

In order to make it easier for you to find flash drives that support Windows Vista ReadyBoost feature, look for the words Enhanced for Windows ReadyBoost or something similar to that printed on the packaging of the USB flash drive itself.

However, if you already have an old USB flash memory device and want to play ReadyBoost on your computer and Windows Vista is telling you that your device isn't fast enough to enable this feature.So we can easily enable ReadyBoost feature on unsupported flash memory devices by a small trick.The steps for this trick is given below:
  • Insert your memory device into the USB port of your computer and ignore the opened Autoplay prompt.
  • Open 'Computer" from Windows Vista desktop and right click on the flash memory device and from the opened context menu choose 'properties.'
  • Go to the 'readyboost' tab in the properties window and check the option 'do not retest this device' and then click 'ok'.
  • Unplug your USB flash memory device from the computer.
  • Open Windows Vista start menu and type 'regedit' in the search box or in the Run command box and hit Enter.
  • This will opens the Windows registry editor and navigate to the following registry key: 'HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\EMDMgmt'
  • Check for the keys corresponding to the USB flash storage device you have ever had attached to your computer. Find the registry key corresponding to your USB flash drive and open it.
  • Double-click on the registry DWORD value 'DeviceStatus' and change it's value to '2'.
  • Now plug in your USB storage device again to your computer and it will now be recognized as ReadyBoost capable device.
ReadyBoost is a powerful feature in Windows Vista that allows you to increase the overall performance of your computer in a cheap and easy manner without any costly hardware upgradings. Though you will not get the exact performance boost that you will receive, if you installed additional amount of RAM memory to your computer.If you monitor the ReadyBoost activity in the Windows Vista Performance Monitor you can determine whether your computer need to install more RAM in order to get the best performance benefit.

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