Been working on a friend's PC that appears to be extremely infected. I had already ran AdwCleaner, and then proceeded to run Malwarebytes. After the Malwarebytes removed infections and rebooted, I only get a black screen with cursor after logging in. I can still boot to safe mode with networking, but the PC is still obviously infectd (getting pop ups, etc. while browsing). Running Windows 7, x64. Any help would be appreciated!