Some of the viruses and spyware that is going around today can be really tough to get rid of. Lots of the time you will have to run many tools to get rid of it all. There will be other times when you remove the infection and it comes right back or you cant get rid of it at all. Have you tried multiple virus/spyware programs? Check out our antivirus and spyware pages for more information.
You can also check your Programs and Features or startup items (MSconfig to find things that aren't supposed to be there and remove them. There may be something running in the background that is causing your modems extra activity. Its also better to do your virus and spyware scans in Safe Mode for better results. You can also find sites that offer free online virus and spyware scans.
Check out Windows Task Manager to see exactly what's running on your computer. You can look at the processes tab and check for anything out of place.
Try booting into Safe Mode and then selecting Last Known Good Configuration. This will boot the computer with the last settings that worked correctly.
You can also try booting into Safe Mode and doing a System Restore and go back to a point where you were not having any problems.
Another thing to try in Safe Mode is to check your startup items using MSconfig and uncheck anything that's not needed or looks like it doesn't belong.
Removing viruses from your computer is not always a straightforward process. Sometimes it’s as easy as deleting a file and other times you have to do extensive registry edits and other modifications.
I would start by having a reputable antivirus program installed on your computer. Some of the better known programs include Norton, McAfee, Kapersky and AVG antivirus. These programs usually have a real time monitoring system that checks when you open files and e-mails to make sure you are not opening a virus.
You can also do manual scans with these programs as needed or have them schedule them so they run automatically at the time you set. When they find a virus they can usually clean the file but if not they will quarantine the file to keep the virus from spreading. Just make sure you keep the program updated so you are always up to date on your virus definitions.
Most antivirus programs will also allow you to make recovery disks so if your computer is unable to boot because of a virus you can boot with your recovery disks and hopefully get rid of the virus.
Check out our antivirus section for more tips and free virus scanning tools.
Read up on virus terminology in our virus glossary.