@artdba,
1) get AVG free ware, install, set to scan for everything. (you can uninstall it after you have made a virus scan)
2) you probaly have loads of tracking cookies and dataminers, disable cookies and only allow cookies for chat fora, know that Face Book has very serious cookies you should avoid (ATDMT)
Whipe them in step 1
3) click START, Run ..msconfig, Start (disable all 3rd party things you don't need)