Readyboost is a disk caching system introduced in Windows Vista that relies on flash memory to boost system performance. The effect is not that noticeable, especially not on systems that have enough system memory, but some users swear on it and I do not want to drag this into a discussion of Readyboost's usefulness.
If your PC has less than 1 Gigabyte or so of RAM installed, it may help you get that extra boost that you may require.
The USB device has to meet specific requirements for use as a Readyboost device which are mostly performance related. The majority of older USB devices do not meet those requirements so that they can't be selected in the configuration menu.
There is however a trick that enables many USB devices for Readyboost even though they do not pass the initial test that Windows performs to find out if a device is suitable.
To do that do the following.
Go to the key HKLM (Local Machine) -> SOFTWARE -> Microsoft -> Windows NT -> CurrentVersion -> EMDgmt which displays a list of all known USB devices on your computer.
Choose the one that you want to use for Readyboost and edit the following keys in the right pane:
After that is done you can use the USB device for Readyboost.
With RAM prices on a new low currently, it may make more sense to buy some RAM instead. Still, if you do not want that or cannot do so because the RAM is already maxed out, you may want to give Readyboost a try.
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Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.