Windows Malicious software removal tool

just downloaded this, about 8megs. Now do i just leave it? do i not need to open anything to run it and does it run in the background all the time or only once? cheers.

Run it once

it runs one time automatically, every month (because a new one is released every month). You can run it manually whenever you want by going Start > Run > mrt

ok thanks guys for the info

I pinned the executable file to my start menu. I run it more than once a month along with others. Some say that running during updates (once per month) will suffice, then after that it's obsolete, but how can that be? You can be infected anytime, so running it after that still should help? That's my logic.

- Vet

ten said:

Run it once

I can't understand your reasoning for saying that.

- Art

It will run once during the install (some say), but I'm skeptical because when I manually run it the scan takes over an hour to complete. I run all my safety program scans often ... you never know when you'll pick up some nasty. I also pin the executable to my start menu so I don't forget to use it. I may be paranoid but the real issue is whether I'm paranoid enough.

- Vet