Ok so here is how i SOLVED this problem.
In my case while investigating this on a clients device i found that a VOIP program was causing this issue and the error message popped up, and renaming the folder wont work because the program is running.
So i found the voip program (in the task bar in this case) and closed it. I then found the folder that needed renaming, "c:\program" and renamed it to "c:\program1"
Then restarted the computer and... No pop up.
Hope this helps.