install folder and then running Ccleaner.
Download and install CCleaner to tidy up your Registry. Backup the Registry as you go along, rescan again and again saving as you go until there are no errors left.
Cleaner: Windows
When you first open Ccleaner you will have an option to Analyze or Run Cleaner, after checking the left Pane and making your choices. Delete all Temp Files. If you scroll down you will see a greyed out box that has Advanced next to it. Left click on it and keep pressing OK to all of the responses. I normally Untick Windows Log Files and Memory Dumps as they may come in handy.
You don't have to install all of the add ons or shortcuts just the one to the Desktop.
http://www.ccleaner.com/download
You could also try a System Restore prior to installing the App.