The "on demand" version of Malwarebytes Anti-Malware (MBAM) is a free download. You can then pay to upgrade it to the Pro version -- which I have.
If you stick with the free version you will have to update it (just click the button) before using it (or else you'll be using an out of date database) and then run it manually. There are three levels of scans -- a flash scan (quick, but superficial), a fast scan (the one I run every day), and a full scan. On my computer (XP, with a 500 GB hard drive) a quick scan takes half an hour. A full scan takes several hours -- I run it rarely, and then set it to run overnight.
But, with the free version, if you don't specifically run it, it's not running. There is no need to uninstall it.
The Pro version does run all the time, in the background, unless you choose to stop it.
|