I have been working on a friend’s laptop a Toshiba Satellite M45-S355, after deciding to reinstall the OS fresh.  I purchased a Recovery CD for the M40/45 laptop and proceeded to start fresh with a brand new OPERATING system, but every time after the install of the recovery CD.  After the restart the splash screen appears, and then the cursor appears for a very short second and then disappears to a blank screen.  If I try restart the computer it goes to windows did not load properly screen, which freezes when selecting run windows normally, and ALSO freezes on MUP.SYS in safe modes.  I have searched the web looking for answers but none have solved my problem.

I have tried HOLDING the “0” button
I have tried holding the “C’ button
I have tried to use another windows XP disk to fix the boot and also the master boot record.

Out of curiosity I tried my dell XP Pro disk and it works just fine.  So that just confuses me even more as to why one WinXp OS will work over another WinXP OS.  I wish to use the original Toshiba Recovery WinXp so that the COA code will work.

Any help, suggestions, or ideas are greatly appreciated and welcomed

Thanks in advance,
Matt MUP.SYS is rather nasty problem.
Nasty, because there is not sure solution to it.
The best, I can do for you, are two links:
http://www.aitechsolutions.net/mup-sys-resolved.html
inside, there another sub-link to:
http://www.aitechsolutions.net/winxpnoboot.html
Why does my dell WinXP work over my friends factory Toshiba Recovery disk with WinXP?It could any NUMBER of reasons, the ones that come to mind immediately are...

1. Existing hardware including the motherboard may have failed in a specific way but not catastrophically.
2. New hardware has been installed but it is faulty or failing.
3. New hardware has been installed but not did not completely "Register or re-Register" correctly.

It's possible that a piece of hardware has been changed in a repair shop and something similar but not identical was put in and the Dell disk is generic enough to work with it.  The Toshiba disks are very specific usually.