Workaround for AutoIt popup window

Workaround for AutoIt popup window Error messagebox

Virus cured: AutoIt3.exe renamed to AutoIt3.exe.JUNK in folder C:\Users\<your user name here>\AppData\Roaming\Microsoft and used the free version of CCleaner to clean registry after rebooting and it solved a constant popup window that kept trying to open this AutoIt file and kept showing the AutoIt Error popup window with "Error opening the file" message.  

Happens every so often, the above is the workaround cure, not sure if uTorrent is (innocently and indirectly) responsible or some random porn site is infecting the PC with this harmless virus / malware.