I know this has been a long time since this thread has been posted in, but I do have the exact same problem. But I've noticed, this ONLY occurs on users with Roaming Profiles/Folder Redirection. On local accounts, this does not happen. I've clean installed the server with 2008R2 and clean installed the client computers and I still have this problem. At this stage I do not think Malware or Virus is causing this. Can anyone help?
Malwarebytes did not find anything and neither did avast! Server 4.8
This can be solved by the following script:
If not exist %userprofile%\AppData\Local\Temp\Low (
echo Creating Low Folder...
echo Apply Integrity Level...
ICACLS "%userprofile%\AppData\Local\Temp\Low" /setintegritylevel (OI)(CI)low