There was no C:\TEMP. I searched for C:\ and TEMP separately too, but found nothing suspicious. There were some entries like %SYSTEMROOT%\TEMP, but the really scientific method, a batch file with cd %SYSTEMROOT%, just gave G:\WINDOWS. The C:\ entries seemed to be there only to keep up list of drives.

Even with “Avast” I found nothing related to C:\TEMP.

I am now actually thinking that I could make a little program that gets the temp folder using the GetTempPath(). It would be interesting to see if it returns wrong location.