I have seen this on three machines so far and then only way I can "Cure" it is to do a windows reinstall.
large amounts of folders with names like: 1a24, 1cfc, 13cc 68c, etc. keep showing up in %userprofile%\AppData\Local\Temp\ and I cannot figure out what's creating them. If you've been running tools such as CCleaner and they hang for hours clearing the temp folder then fail, this is likely the cause. Does anyone know what this is and how to fix it!?