|do not do system restore, i dont trust it at all.|
Go to start>Run>MSCONFIG
under the start up tab a large majority of services you dont need directly at startup.
deselect those you deem unnesicary such as nero, windows live messenger, steam, office groove, skype etc etc etc.
also give ccleaner a shot, i have not tried your program but ccleaner has done me wonders.
Intel Q6600 G0 @ 2.4ghz
Evga 8800GTS 640mb/320bit
1x 160gb | 1x 500gb
750w corsair psu