[diman82]

Great, worked for me! Great & simple solution!

Simply check that CTFMON.EXE boots at startup (for all users).
Use the following code (copy and paste to a .REG file) if you don't know how to add manually this executable to HKLM startup.

Code:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"ctfmon"="CTFMON.EXE"