My computer has been attacked by Trojan and I have used AVG-antispyware to clean it but it's still very slow
918802
Usually a trojan is not a virus, but a spyware.  If you are using the AVG virus scanner, it may not get it.  Try run a couple of anti-spyware programs like Skybot Seek and Destory or Ad-aware (both free at download.com)\n\nIf you picked up this trojan within the last day or two, you can also try goint back to a restore point before the time you got infected.  While that will not remove all the files from the torjan, it usually removes the registry and system settings that load and run the trojan, making it harmless.
162437
Run a virus scan from one of the online guys, get a anti virus program and keep it up to date, run a virus scan. Does the PC seem slow, does it seem to do things on it's own, do you notice network activity when your not doing anything?
435839
First - get a copy of a shareware / free trial of a registry cleaner (Ace Utilities is as good  as any ... see link).  Install registry cleaner - then reboot computer to safe mode.  Delete all program files for the anti-virus program you want to get rid of.  Run registry cleaner to remove all registry entries of the program - and that should do it.  Good luck!
1083043
Go to http://www.moosoft.com   ....download their 30 day free trojan/virus program..It will clean those for ya .
74841
It's possible your pc may be infected with a virus. Trojan virus's tend to crash your computer, change your homepage at random, shut down your pc while you're in the middle of something, and they slow your system down tremendously. I would try scanning for viruses to see if that is the problem. \nI didn't realize that my norton antivirus had expired, so for almost a month, I didn't get any norton updates, and unfortunately ended up with 26 trojan viruses and 3 worms. I did a full system recovery, and installed a free virus protection called AVG. It works very well, and I'M BACK!!! It was a horrible nightmare!
759685
download a good antivirus and antispyware update them and run them in safe mode
713333
It's a trojan running undetected in the background.  Nothing will get rid of it except formating your harddrive and reinstalling windows.  Don't attempt this without someone knowledgeable present or at least buy a book on it.
257584
You need to clean your system. Start by downloading and running both AdAware and Spybot. You can get them for free here - http://www.download.com/2001-2001-0.html?st.dl.redir.txt.fd\n\nSecond you should download and install an antivirus program. There is a free version of AVG available here - http://www.majorgeeks.com/download886.html\n\nGood luck.
694758
run a spyware program, AVG have a free version,  http://free.grisoft.com/doc/20/lng/us/tpl/v5 \n\nafter this clear out your cache, ie: temp files etc.
580405
You can try Computer Associates EZ Trust Anti-virus.  It provides for cleaning of all the viruses in your system and also doesn't slow the system down that much.  Remember when you are doing a scan using an anti-virus, the system will slow down a bit as the processor is engaged in the anti-virus product and may not be able to give its time to other work.  \nAVG although free cannot remove all the viruses.  If you want another type of freeware removal tool, then go to microsoft and use the malware removal tool.  It's good.  The link is listed in the sources area.  \nYou can use the link and from there go to the malware removal tool page.  The tool isn't a replacement for an anti-virus product.  You could also use Windows Live Safety Scanner.  it cleans and removes virus and spyware, cleans registry and defragments the disk.
731303
google these programs. install, update, and run them all\n\navg antivirus\navg antispyware\nad-aware\nspybot search and destory\nspyware blaster
768154
you don't mention which trojan you have so it will be hard for anyone to give specific information.\n\nA trick that I've used in the past when AVG stumbled across an infected file that it couldn't delete or quarantine is:\n\n1. Copy the entire contents of the affected folder, minus the infected file (select all, then whilst holding the ctrl key, click on the infected file, then right click one of the highlighted files & select 'copy').\n\n2. Create a new folder on the desktop & paste what you've copied into that folder.\n\n3. Write down the exact name & location of the folder containing the affected file, and then delete the entire folder. (if this doesn't work, check the 'read only' status in properties - it should be unchecked.\n\n4, Rename the folder that you copied the files to, to the name of the folder that you deleted, then cut it, and paste it in the same location as the folder you deleted. \n\nYou should now have everything as it was before, minus the infected file.\n\nThe above assumes that you have tried & failed in manually deleting the affected file in windows explorer - if not, try that 1st, remembering to check the read only status of the file.\n\nEDIT: I gotta agree with ashutosh. I'm a former norton user who converted to AVG - after 18 months I've had a small fraction of the grief that i experienced with norton products.
729360
go into safe mode do a disk cleanup and defrag also run your antivirus and antispyware
463500
try turning off mcafee. having any virus scan on startup slows computers down immensely.
551451
It varies with the anti virus software you installed, basically related to resident shield, uncheck scan program before open or take out the extension "doc" or "do*" from the list for scan before program run.\nTry at your own risk if you think file open faster is better than more protection.
311700
Well It Could Be Solved By All Those Things, But You Haven't Specified Exactly What Happens After 10 Mins. Coz If The Comp Restarts After 10 Mins It's Probably A Trojan. And Most AVs Can't Detect Trojans That Easily. For That You Should Use AVG, It's Kinda Good. If It Is A Virus Or A Trojan That Still Can't be Deleted It's Probably A Sasser Worm, That Can Only Be Gotten Rid Off By A Low Frequency Format. Trust Me This Works Coz I Had The Same Problem!
958267
I'm afraid you seem to have been infected by a Trojan.\n\nPlease run your Anti-Virus Program.  May I recommend Avast?  You can download and install your free of cost home users license version from http://www.avast.com \n\nPlease also download and install Windows Advanced Care, free Cleaner, Repair and inoculation Program from http://iobit.com/\n\nThese are complementary programs and your computer should have no further problems.\n\nPlease remember to update them from time to time.\n\nAll the best.