I found an old reformatted computer somewhere, with Windows XP installed. It's a bit faulty; I can't get the monitor settings to work on anything other than the lowest resolution. But that's not the point of this question.
I've hooked it up to a LAN line, and it's now browsing the internets pretty fine. I'm actually making this post from it right now. I'm working on Firefox, but I'd like to be able to upgrade Internet Explorer, or at least try to install the service pack upgrades.
There's only one problem -- attempting to browse to any website under the microsoft.com domain returns a Server Not Found error. I've tried changing my DNS settings to Google DNS, but nothing seems to work. It's as if whoever reformatted this computer had some sort of overzealous notion of censorship. All other computers on this network are able to access microsoft.com domain names perfectly fine.
Does anyone know what could perhaps be causing this problem?
EDIT:
Malware is likely the culprit so far, as malwarebytes.org is also behaving the same way that microsoft.com is behaving.
After a scan, it seems like that old Conficker bug is the culprit. Anyone have any idea how it could have gotten onto a system that was reformatted a few years back? Oh well.