System Manufacturer/Model Number Acer OS windows 7 64 CPU intel(R) Core(TM) i7 CPU Q740 @ 1.73GHz Memory 4.00 GM Graphics Card ATI Mobility Radeon HD 5650 Sound Card ATI High Definition Audio Device
Do you know what those files do. If you don't you could just load a Live CD of Ubuntu and delete them and see if that fixes it or you could if you had a windows 7 CD you could try the automatic repair tool.
Clean your RAM with a soft cloth.
Clean your registry and remove junk.
Update your drivers.
Processor overheating.
Remove recently installed software.
Change the cords of your hard disk.
Clean the disk by deleting temporary stuff.