MS Office: “Word could not create the work file. Check the temp environment variable”

After I removed my RamDisk (AMD Radeon RamDisk) I couldn't startup MSWord, MSExcel ... but the following tips fixed my problem

The error message “Word could not create the work file. Check the temp environment variable” is  caused by incorrect registry values in the key:
HKEY_CURRENT_USER\Software\Microsoft\Windows\Current Version\Explorer\User Shell Folders

Run regedit and go to the above path.
On the right hand pane, check the value data for Cache. It has to be:
%USERPROFILE%\AppData\Local\Microsoft\Windows\Temporary Internet Files

If it is different, double click on Cache and type:
%USERPROFILE%\AppData\Local\Microsoft\Windows\Temporary Internet Files

under value data and click ok.

Close the registry (and restart the computer) and check if it works.