global dating inc - Offline updating of microsoft security essentials
I use Microsoft Security Essentials (MSE) on a Windows XP machine.
My computer refused to do any sort of official updates, including Microsoft Security Essentials.
It couldn't even sync my clock with the default internet server!
However, my ID on the same machine was fine and appeared to be completely unaffected.
MSE on my ID would not detect or remove the virus and it could not run on her ID. No AV app will catch everything, and almost none will stop the drive by infections that require operator input to infest, the fake scareware pop ups.
Start in Safe Mode and load Malware Bytes loaded on a USB flash drive if possible (many of these nasties won't allow you to download Malware Bytes.) Internet Options and click on the Connections tab.