I have a Windows 7 Aspire 5750G Laptop. Yesterday I installed a new Font that I inadvertently installed a toolbar with it. I can't remember the name of the programe, but when I tried to uninstall it, it wasn't there, so I tried to restore my laptop to an earlier date, now nothing works. All I get is The backup and restore application could not start due to an internal error: Class not registered (0X80040154). can someone help please.