The best thing i can say is you could use a good fix.So here this helps with lots of stuff.
System Mechanic - Reviews and free System Mechanic downloads at Download.com
Requirements: Windows 2000/XP/Vista
Limitations: 30-day trial
your new PC running fast and problem-free. System Mechanic improves System Mechanic improves performance, repairs drive errors, eliminates crashes, manages applications, and defends against malware. Without regular "tune ups," all computers slow down with use. Junk files accumulate on your system. Fragmented drives, tangled registries, and driver conflicts degrade PC performance, leading to system crashes and freezes. System Mechanic contains over 30 tools and wizards to speed up your PC and maintain it in peak condition. The world's top selling PC tune-up software replaces dozens of less powerful utilities, offering total PC care in a single integrated package. System Mechanic runs automatically, intelligently cleaning and tuning your entire PC. Or you can launch select tools in the software whenever you think your system may need a boost. A licensed version of System Mechanic can be installed on up to 3 computers. Version 7.5.5.1 may include unspecified updates, enhancements, or bug fixes.