The FIRST thing to do is DISABLE System Restore.
If enabled, this allows malware to hide in the computer and re-install itself. To disable it, RIGHT-click on "My Computer." Select "Properties" then under the 'System Restore' tab, check 'Turn off system restore' IF not already checked.
The next most helpful things that would help you are to use ONLINE scanners from websites to remove any malware on your PC. The current best online scanners I prefer are from Kaspersky antivirus and Bitdefender antivirus. Together, these 2 scanners will find ALL the bad stuff on your PC because they have the BEST detection rate.
First, use Kaspersky's. (FYI: ALL these scans require you to agree to a EULA and install an activex control which is needed to perform the scan, so agree to them all.)
*NOTE: Some scanners ONLY work with IE or may not fully remove malware
http://www.kaspersky.com/virusscanner......
Then scan with:
http://www.bitdefender.com/scan8/ie.html...
There are MANY other good online scanners which you may choose to also use (which will take longer but ensure safety):
http://onecare.live.com/site/en-us/defau... (Windows Live Onecare)
http://www.emsisoft.com/en/software/ax/.... (A-squared scanner)
http://www.ewido.net/en/onlinescan/...... (ewido)
http://www.ca.com/us/securityadvisor/pes... (Spyware scan)
http://www.ca.com/us/securityadvisor/vir... (Virus scan)
http://www.pandasecurity.com/homeusers/s... (Panda Antivirus)
http://www.housecall.trendmicro.com/...... (TrendMicro)
http://www.eset.com/onlinescan/...... (Nod32)
http://support.f-secure.com/enu/home/ols... (F-secure)
After using these, it's ESSENTIAL to install at least 3 antispywares. Do NOT use more than 1 antiVIRUS or firewall as they conflict.
The best things in life are FREE, and great free software can be found @:
Superantispyware.com (Superantispyware FREE)
lavasoft.com (Ad-aware SE)
emsisoft.com (A-squared FREE)
safer-networking.org (Spybot S&D)
javacoolsoftware.com (SpywareBlaster)
microsoft.com (Windows Defender)
free-av.com (Avira AV)
siteadvisor.com (Tells you how safe websites are)
phoenixlabs.org (Blocks malware, government, anti-p2p org's)
zonealarm.com (Top Notch Firewall)
comodo.com (Another Top Notch firewall)
iobit.com (Advanced Windows Care)
Eusing.com (Registry cleaner)
ccleaner.com (Junk file cleaner)
Now if you can afford it, the best software to BUY are:
Spy Sweeper (VERY much worth the $$$)
Security Task Manager
Norton Internet Security
Kaspersky (BEST! =D )
Bitdefender (2nd BEst!)
F-secure (Same as Kaspersky)
Linkscanner (Blocks exploits in real time)
Advanced Uninstaller
If there's ever ONE file you suspect is infected, you can try some single file scanners which use MULTIPLE engines to scan ONE file.
They are @ virusscan.jotti.org or virustotal.com
If you're PC is squeaky clean, re-enable system restore because it IS good to have but we needed to shut it off to wipe out the malware.
Just RIGHT-click on "My Computer." Select "Properties" then under the 'System Restore' tab, UN-check "Turn off system restore."
*Another thing to consider is using another browser besides Internet Explorer. It has a lot of security holes,
making it less safe. I prefer Firefox from mozilla.org.
It's easy to use, FAST, and has a lot of neat little add-ons you can toy around with. It is also safer from exploits than IE.*