Hi Peoples I was wondering if someone here may have some advise on a particular problem that I am having. My readyboost cache is continually re-created everytime I reboot my laptop. Its on a 4GB SD Card and I dedicate the entire SD card to the readyboost cache. I noticed that there was always a lot of writes to the cache after startup - so I downloaded the readyboost monitor for windows 7 and watched as after the reboot, the cache only has 100MB, then it slowly creeps up MB by MB to 3971MB. I can confirm this as in the windows event logs, everytime the laptop is rebooted, there is an entry stating that the cache was successfully created on system startup. I also watch the Disk IO in resource monitor and sure enough there is a lot of writes (not much in the way of reads) to the readyboost cache on the sd card every reboot. I have made sure that my SD card disk policy is set for Quick Removal as I have read that having it set for optimised performance can cause this problem, but to no avail. Can anyone offer any advise on how to stop the cache from being re-created each time the system is rebooted? Cheers Rod.