Windows Help and Support Error

If you get an error Windows cannot find HELPCTR.EXE, it may be that a registry entry has gotten corrupted.
Start Regedit
Go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\HELPCTR.EXE
If the key isn't there, right click and create a new key HELPCTR.EXE
It should have a value of C:\WINDOWS\PCHealth\HelpCtr\Binaries\HelpCtr.exe
Reboot