Henever I am in Mozilla I get a pop up saying my PC has 7 window errors and can run faster. I cannot see how to get rid of this.

Question

I tried to download Tetris yesterday onto my laptop - not quite what you would call an ambitious gamer!
As it was doing so I noticed that the software was trying to alter some settings in the registry.
Now whenever I am in Mozilla I get a pop up saying my PC has 7 window errors and can run faster. I cannot see how to get rid of this.
When I copy the link location it says:
https://secure-ams.adnxs.com/click?KGIRww5jtj8oYhHDDmO2PwAAAICXbtI_KGIRww5jtj8oYhHDDmO2Py8cBrFeTaRkUe4MK_5ewBbHVyJRAAAAAMypEAA_AQAAPwEAAAIAAAAwB0YA6-ECAAAAAQBVU0QAVVNEACwB-gDulQAA42kAAQMCAQUAAIQARiCzrAAAAAA./cnd=%21ngVsMQjTqzoQsI6YAhjrwwsgBA../referrer=https%3A%2F%2Fwww.google.co.uk%2F/clickenc=http%3A%2F%2Fappround.net%2Fpcperformer%2Fst6%2Fpcperformer-st6.php%3Fcid%3D3902%26tid%3Dams1CNHcs9ji35fgFhACGK-4mIjrq5PSZCIOMjEzLjc4LjE0NC4yMTQoAQ..
and here is the image
Any ideas?

Answer 1

Such a pop-up is likely caused by malware installed on your computer.
Do a malware check with some malware scanning programs on the Windows computer.<br />
You need to scan with all programs because each program detects different malware.
Make sure that you update each program to get the latest version of their databases before doing a scan.
*Malwarebytes' Anti-Malware:<br>http://www.malwarebytes.org/mbam.php
*SuperAntispyware:<br>http://www.superantispyware.com/
*Microsoft Safety Scanner:<br>http://www.microsoft.com/security/scanner/en-us/default.aspx
*Windows Defender: Home Page:<br>http://www.microsoft.com/windows/products/winfamily/defender/default.mspx
*Spybot Search & Destroy:<br>http://www.safer-networking.org/en/index.html
*Kasperky Free Security Scan:<br>http://www.kaspersky.com/security-scan
You can also do a check for a rootkit infection with TDSSKiller.
*http://support.kaspersky.com/viruses/solutions?qid=208280684
See also:
*"Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked