Guys I recently purchased a 1 GB kingston flash drive which was shown incompatible in tests for readyboost.
However after some googling I was able to make it work
here is the way
| Format the Drive with the following settings in place.
Allocation Unit Size:
[x] Quick Format
Then goto the the General tab under the drives properties. And put a check by the following.
[x] Compress this drive to save disk space
test the device for ReadyBoost. Also make sure that you have the “Optimize for Performance” setting applied in the properties for the device under the Hardware tab.
This guy here suggested this,many thanks to him
and dont use this if your have a snailspeed drive,it may make windows slow.