Oh certainly. That's in fact one of the easiest ways to fix it. But first you have to identify what the cause is. When I got infected, it wasn't apparent and very random items happened in the OS (Win98 at the time). Heck, I thought it was just a bad network card. Took almost 8 hours of various troubleshooting (while helping others at the same time) before the clue meter kicked into gear and I decided to check with a boot disk.