The Temp folder is on a drive that is full or is inaccessible in Vista.
Question
The Temp folder is on a drive that is full or is inaccessible in Vista.
Full error
The Temp folder is on a drive that is full or is inaccessible. Free up space on the drive or verify that you have write permission on the Temp folder.
Answer
When installing a program such as Adobe Acrobat 8.0 that requires write access to the %TEMP% directory if the User Access Control is disabled no program will be able to write to this directory. To fix this issue re-enable the Windows User Access Control (UAC).