Annoying popups in windows xp

[snakey]

Hi.Good day. I am having a problem with popups.  They are very annoying and they keep appearing from time to time tellling me that i have won something. I have popup blocker enabled and my avast home edition updated and also i have windows defender running.The are appearing  like this 1.http://freelotto.com. 2.http://perfspot.com.3.http://ad.globe7.com. I beleive i have spyware or even a virus on my pc. Can anyone tell me how to get rid of this problem?

[mathboyx215]

Download malwarebytes http://filehippo.com/download_malwarebytes_anti_malware/
Install it and update the program.Then run a quick scan.
If any infected item was found after the scan is done,click on "remove selected".
Then post back a log

[Lisandro]

I suggest:

1. Clean your temporary files.
2. Schedule a boot time scanning with avast with archive scanning turned on. If avast does not detect it, you can try DrWeb CureIT! instead.
3. Use MBAM (or SUPERantispyware or even Spyware Terminator) to scan for spywares and trojans. If any infection is detected, better and safer is send the file to Quarantine than to simple delete them.
4. Test your machine with anti-rootkit applications. I suggest avast! antirootkit or Trend Micro RootkitBuster.
5. Make a HijackThis log to post here or this analysis site. Or even submit the RunScanner log to to on-line analysis.
6. Clean your Hosts file (replacing it) with HostsMan tool.
7. Disable System Restore and then reenable it again.
8. Immunize your system with SpywareBlaster.
9. Check if you have insecure applications with Secunia Software Inspector.