How to fix issues with Task Scheduler:
I’ve had quite a lot of my customers PC’s that have been affected by this bug, it’s unsure how it happens but the result is the same, newly installed programs cannot create tasks to update/scan etc.
This is how you fix it 🙂
Look for this in REGEDIT, then see which ones cause an error when you run Task Scheduler, and delete those.
The hive is here:
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree
Good luck!