I'm helping to fix a laptop and it needs some serious TLC. It's a Sony Vaio, running Windows Vista Home Premium. Upon starting the computer, I get an error that says The NTVDM CPU has encountered an illegal instruction. The exe in question is C:\Windows\system32\Userinit.exe. I'm given the option to close or ignore, I close it and move on. Then I'm just stuck on a blue screen. I have to ctrl+alt+del to open task manager and manually run explorer.exe, it will not load on it's own. After getting to the desktop, none of the programs will run. You double click anything program on the desktop and it just sits there trying to run but it never actually loads the program. I have to run in Safe Mode just to get online and post this thread. This problem started slowly and has been getting worse, to the point where nothing works. I ran a quick scan with Malwarebytes and removed a few things, but it hasn't helped. Any assistance would be greatly appreciated.