Spywares are in ur computer !!!
I had gone through this stage by......
1st, format ur computer and install all mcafee security suite components including virus scan, firewall and stuff. They do the good job on blocking unwanted virus and spywares.
2nd, try "ghostsurf" becuz it helps u to protect ur internet privacy.
Conclusion, I hav done all this and my comp never had any problem going into any unsecure websites which give tons of spyware and stuff.
ur loading time should now be within 10 bars, CHEERS