can't access SYSTEM in control panel

FF asked to install the latest Adobe Flash update, and when I did, it installed the McAffee automatically, I could not uncheck it and it installed simultaneously there is nothing I could do, I unchecked everything before the installation and it said it will only install the update, no tool bars no nothing, but still it installed that crap. As soon as it was done, I used Your Uninstaller to uninstall it, and it did, but the damage was done. I can't be sure that is what caused all these problems, but judging by the timing and the fact that this happened before a few months ago, also with a free McAffee installation, I'm through giving it the benefit of a doubt. AV programs are crap in general (MBAM is a blessing for sure), but I thought surely nothing could be worse then Norton, but here comes McAffee with a bunch of who knows what bloatware and spyware, argh. Avast is the only one I would even consider using, but since it never catches anything that MBAM does, I don't really see the point, I think I'll just stick to MBAM and that's it, even if it is not an actualy AV proggy.

All traces of it are gone already, but thanx for that link, future use perhaps.