Hangs On Mup.sys, Looping Startup, Missing User32.dll After Recovery Attempt - Help

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Well I have looked around for help with this issue and frankly I trust no one in any other community right now so WebProWorld it is!

To make a long story short and to summarize elaborate on the title of this post, I awoke this morning to a frozen computer (Compaq Presario, NTFS, Dual Channel 64bit) (it's getting a little old (on 6.5 years)) as usual as of late I gave it a hard reboot (pressed power off) and thereafter have gone through the infinite loop restarting in regular mode, safe mode, safe mode with DOS, recovery mode and so forth.

In safe mode and with DOS prompt, it hangs on Mup.sys. In regular mode it seems to load up to the login prompt screen but I can't see a thing and therefore do nothing. In recovery mode (pressing F10) it gives me an error saying User32.dll is missing.

I removed the drive, purchased some hardware that allows me to turn the drive into an external drive so now I can see all my files and so forth.

I can't start in safe mode and start system restore because it hangs on Mup.sys.

Does anyone have any idea how I can overcome this problem?

All help is appreciated. Thank you.

P.S. My original Window's CD in long gone...