Thats a very good Question! If you restore your computer to a previous date your documents and pictures wont be affected. the only things that will be changed are installed programs. You will lose some things that you downloaded. My suggestion is get a 1 or 2 gb flash drive and backup anything you downloaded in the past week. So now you cant lose anything!
Also you need to run a real virsus scan. If you dont have one get AVG Free. There is a link at the bottom. Also get Spy-Bot and Ad-Aware. Download and install them all. Go into safe mode and run them. They can most likely get rid of that virus for you! Keep running them until its all gone. To get to safe mode Start > Run > msconfig and go to the boot tab. select Safeboot. And restart your computer so you can boot into it. With AVG in safe mode it will tell you exactly where the bad files are located. so when you see a bad file go to My Computer and delete it! I got rid of many viruses this way.
Hope this helps!
Richard
Certifications:
MCSE (microsoft technician)
CSSA (Sonicwall technician)
Dell, HP, Gateway, Acer, Lenovo/IBM, PowerSpec certified technician
Helpful Programs:
(all these programs are 100% free lifetime programs, if your asked to pay for it you clicked the wrong link)
CCLEANER
(http://www.filehippo.com/download_ccleaner/)
DISK DEFRAG and REGISTRY DEFRAG
(http://www.auslogics.com/en/software)
Feel free to also get System Information! Its very helpful.
AVG FREE
(http://www.download.com/AVG-Anti-Virus-Free-Edition/3000-2239_4-10320142.html?part=dl-AVGAntiVir&subj=dl&tag=button)
(make sure that you click the big green Download Now button)
SPYBOT
(http://fileforum.betanews.com/detail/Spybot_Search_and_Destroy/1043809773/1)
(make sure you take the one with the check mark)
AD-AWARE
(http://www.download.com/1770-20_4-0.html?query=Ad+Aware+2008&tag=404&searchtype=downloads)
(make sure that you click the big green Download Now button)