You could try Google Pack. It has free antivirus and spyware tools. Google recommends it, so it's pretty good, http://safe-google.com/pack

Go to downloads.com and get avast.free

here is the list that I offer for folks to look over, all software is free and I use it myself with great luck: SIMPLE STEPS TO DOWNLOADING VIRUS & SPYWARE PROTECTION (& steps for protecting PC) For XP NEWEST AVG 8.0 BOTH ANTI-VIRUS & ANTI-SPYWARE (for those running Vista you must have all updates done plus SP1 to use) http://free.grisoft.com/ww.download?prd=afe AVG anti FOR SPYWARE, MALWARE, ROOTKITS download.avgfree.com/filedir/inst/avgas-setup-7.5.1.43-3339.exe AVG Vcleaner-cleans 704 viruses and variants http://www.scanwith.com/download/AVG_Vcleaner.htm AVG 8.0 Anti-Virus & Anti-Spyware AVG 8.0 Anti-Virus & Anti-Spyware 1. http://free.grisoft.com/ww.download?prd=afe 2. Click where you see red arrow and download AVG free 8.0 3. This will take you to Cnet download web page, click the area that says download now, a box open that ask you to: Run or save or cancel file size is 45.5MB 4. Choose save either to desktop or my documents your choice 5. Once files is downloaded, right click and open file and run, the only thing you need to do is keep clicking next (except take note there is one box that ask you is you want a AVG toolbar uncheck this box) and computer will reboot and end. 6. If you already have AVG 7.5 it will uninstall by itself and AVG 8.0 takes over, also if you have AVG anti-spy ware you can un install this program as 8.0 is both now. 7. The new AVG allows you to schedule times for scans where old did not. On main page of AVG on the left hand side click computer scanner and a page comes up where you may set date & time, edit as often as you like. 8. Under tools at the top, look under history, you will find the virus vault basis same as old program. You can delete one by one or just empty vault, or rescan from here etc. Also under tools you can start a scan on your own, scan a file if you wish, or folder, do an update if you just wish to check and see if they are all done. 9. One of the biggest difference’s is when you are surfing the net you will see little green star by web site as AVG checks them for you to see if safe before entering, if there’s a question mark program is unsure. 10. And offers a help section at top also for those who need little more knowledge. 11. At one point you will be asked to registry your copy of AVG, just follow the instructions and it takes you to their web page, you must give your e-mail address and put a check in at least one box, click ok then its done. Now for your next layer of protection download the following also but remember you can only run one program at a time, but each of these will fine things the other didn’t. Spybot search & destroy found at www.safer-networking.org DOWNLOAD SPYBOT SEARCH & DESTROY ONCE YOU HAVE TYPED www.safer-networking.org THE YOUR SEARCH BAR IN YAHOO 1. IT WILL LOOK LIKE: SpyBot Search and Destroy (S &D) CLICK 2. CHOOSE YOUR LANGUAGE - EXAMPLE ENGLISH 3. AT THE TOP OF THE PAGE WHERE IT SAYS DOWNLOAD - CLICK 4. LOOK DOWN THE PAGE TO WHERE DOWNLOADS START, YOU NEED THE FIRST ONE IF YOU HAVE VISTA AND WORKS FOR XP AS WELL SpyBot-Search and Destroy 1.5.2 CLICK DOWNLOAD ***NOTE (For those who are looking for version 1.4 it’s the 5th one down, it does not work on Vista, but does on XP) click download 5. NEXT PAGE OPENS CHOOSE A MIRROR SITE I TEND TO USE SAFER-NETWORKING LTD CLICK DOWNLOAD HERE 6. BOX OPENS CHOOSE SAVE AND DO SO TO YOUR DESKTOP OR TO YOUR DOCUMENT FILE AND OPEN AND RUN FROM THERE FILE IS 9.27MB Superantispyware found at http://superantispyware.com SUPERANTISPYWARE DOWNLOAD ONCE YOU HAVE TYPED http://superantispyware.com YOUR SEARCH BAR IN YAHOO YOU WILL SEE: SuperAntiSpyware.com- AntiAdware, AntiSpyware, AntiMalware CLICK 1.LOOK FOR BIG BLUE BOX ON THE LEFT SIDE OF THE PAGE SAYS DOWNLOAD FREE VERSION HOME USERS - CLICK 2. NEXT PAGE SCROLL DOWN, AGAIN LOOK FOR THE BIG BLUE BOX SAYS DOWNLOAD FREE VERSION HOME USERS - CLICK 3. NEXT PAGE DOWNLOAD SHOULD START AUTOMATICALLY 5.64MB VERSION 3.9.1008 ****NOTE (if it doesn’t start at once look at the top of the page for a light yellow bar, its basically a security bar, click and choose allow, it usually has to do with Active X) If still does not open look on the page under the words Download progress: If the download does not begin shortly please (click here is in blue) Click it 4. DO SO AND A BOX OPENS, SAVE TO DESKTOP OR MY DOCUMENTS, OPEN AND RUN FROM THERE And finally go to this web site for this program to clean up your internet history, cookies, browser history, recycle bin, IE Explorer, etc all the boxes can be preset and basically in 4 steps you can clean computer. It does so well that disc clean usually only will find 32-100MB after its done http://www.snapfiles.com go to the freeware section, look for Internet Cleanup, then look for the software called IE Privacy Keeper IE PRIVACY KEEPER DOWNLOAD WHEN YOU TYPE WWW.SNAPFILES.COM IN YOUR YAHOO SEARCH BOX THIS IS WHAT YOU WILL SEE WHEN IT OPENS Snapfiles - software reviews, download freeware and trial programs - CLICK 1. WHEN THE PAGE OPENS LOOK FOR A TAB AT THE TOP OF THE PAGE THAT SAYS FREEWARE - CLICK 2. WHEN PAGE OPENS SCROLL DOWN AND FIND INTERNET CLEANUP TOOLS - CLICK 3. WHEN PAGE OPENS SCROLL DOWN TILL YOU SEE THE PROGRAM SHOULD BE LIKE ABOUT THE 14TH ONE DOWN - CLICK THE BLUE DOWNLOAD BUTTON FILE SIZE IS 1128kb 4. NEXT PAGE OPENS IF DOWNLOAD DOESN’T START LOOK FOR A LIGHT YELLOW BAR AT THE TOP OF THE PAGE, CLICK THE OPTION TO ALLOW TO OPEN, USUALLY HAS TO DO WITH ACTIVE X ***NOTE If for some reason still doesn’t start click the blue words click here they are in the middle of the page in tan box. 5. WHEN THE BOX OPENS SAVE TO DESKTOP OR MY DOCUMENTS, OPEN AND RUN FROM THERE. Last but not least do Defrag at least 2-4 times in a row even if program says not needed, as XP Defrag program isn’t the best and needs to be run more often. And also go to http://www.glaryulitilies.com for free registry repair programs (and spy ware) really great software works fast, runs in 2 steps. GLARYULITILIES DOWNLOAD GO TO www.pcworld.com 1. WHEN PAGE OPENS TYPE IN THE SEARCH BOX - REGISTRY REPAIR PROGRAMS - CLICK GO 2. LIST WILL OPEN, SELECT THE SECOND ONE - GLARY REGISTRY REPAIR (ITS FREE) CLICK IT 3. NEXT PAGE, YOU WILL SEE A RED ARROW AND DOWNLOAD NOW IN BLUE WORDS - CLICK 1.30MB 4. NEXT PAGE BLUE BOX DOWNLOAD FREE REGISTRY REPAIR NOW- YOU CAN CLICK HERE BUT REAL SLOW (works on 98, XP, ME, 2000, 2003, Vista) just not 64 bit supported 5. For a faster download click where it says - mirror here 6. NEXT PAGE IF IT DOES NOT START IN 5 SEC LOOK FOR A SECURITY BAR, WHICH IS LIGHT YELLOW AT TOP OF PAGE, CLICK THE OPTION TO ALLOW IF FOR SOME REASON IT STILL DOESN’T USE THIS OPTION: LOOK FOR THE LINE THAT READS CLICK HERE IF IT DOES NOT 7. BOX OPENS SAVE TO DESKTOP OR TO MY DOCUMENTS AND OPEN AND RUN FROM THERE or to http://www.snapfiles.com and to their freeware section to find them also. (can only run one virus program at a time on a PC but you may have as many spyware programs as you wish as long as you run only one at a time, and only one firewall) A GREAT FREE ONE IS ZONE ALARM FOUND AT www.snapfiles.com under the freeware section, personal firewalls. Another little great tool for you is go to Google or Yahoo : One of the best pieces of FREE software there is today that will show you what is on your computer is known as: Belarc once it is downloaded you simply run and time you wish to see what is installed on your PC, from OS to Model, hardware, software, hot fix’s and the Keys to software on PC. This makes it a valuable program in that you can run it every so often and print off and save for you keys if for no other reason. *** Note: It is wise to only run one virus program at a one time but run as many spyware as you like, only run them one at a time, other wise they will conflict with each other, it is good to have more than one as each will find some thing the other did not. Unistall any other program as they may conflict such as Norton,MacAfee etc. The only one this list that runs in safemode F8 is AVG anti-spyware, which does work great in safemode. Also wise thing to do is to run the virus & spyware program once without internet connection and then again with internet, as some times the virus will try to block program other wise when internet is running. This list has been drawn up by me and designed by me and is not copyed from anywhere as it has been suggested, please feel free to use as much as you like, and I hope it helps in some way. G_tech

avast doesnt works properly in removing autorun virus it just delete inf file and nothing