I have changed the path of my TEMP-Folder to D:\TEMP by setting the environment-variables TEMP and TMP accordingly (using the UI under System->Advanced Options -> Environment Variables). However, if I type %TEMP% into the Windows search field, I still get to the old path. Did it change correctly or have I done something wrong?
I had the same problem but I figured that it had changed correctly. Because when I deleted the file remnants left in the old path, I noticed all the files got deleted without getting the "file in use" warning and the folder remained empty meaning no temporary files were being created there any more.