Windows 7 readyboost used to work, and not doesn't.

Windows 7 readyboost used to work, and now doesn't work anymore?

Try this:

edit the registry, back up first!!



HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\EMDMgmt



Remove all the sub values (they look like folders) that are there. They usually are in the form:

_??_USBSTOR#Disk&Ven_Multi&Prod_Flash_Reader&Rev_1.00#058F0O1111B&0#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}BOOST_1517140716]



You may have several of these.

Then re-insert the flash memory stick.



Re-open regedit and change the following values in the memory stick settings Vista has just created.



"CacheSizeInMB"=dword:000003c0
"CacheStatus"=dword:00000001

"DeviceStatus"=dword:00000002



Then close regedit and right-click the memory stick drive from "my computer". Go to the ReadyBoost tab and set the cache size as you like.



That's it. Enjoy