Chosen Solution
It worked fine until it updated. Now it is running so slowly I have waited over an hour for the control panel. How do I undo the update without the control panel? Can I boot in a safe mode? Can I boot from an external drive?
Try to clean your system instead of an Downgrade using the following tools: After each run, restart your computer : 1 - ComboFix ( <= Windows 8 ) Close your Anti-virus before you lunch it ! 2 - ZHPCleaner 3 - AdwCleaner It will work fine & very fast after that ! :)