Blue Screen of Death on Startup - Help

I have an IBM t30 Thinkpad that was running Win 2000 and I upgraded to Win XP Pro about 3 months ago. Recently I installed a freeware program called "EasyCleaner". It erases internet files, deletes unecessary registry files and shows you duplicate files to delet in your system. I have used it numerous times and it works great, but I ran it to find duplicate files and it came up with a bunch. I wasn't thinking and clicked on delete files. I had a warning from windows about deleting some kind of files (like core files??). Anyway I immediately stopped the process, but it had already deleted some files. Instead of restoring them from the recycle bin I restarted. Everything seemed normal, I received the Windows XP Professional ( now loading) screen but then came the Blue screen of Death with:

STOP: c000021a {Fatal System Error}
The Session Manager Initialization system process terminated unexpectedly with a status of 0xc0000034.

I have looked at Microsofts description of this error message. I've tried the follwoing and they haven't worked.


Start in Safe mode
Restore to last good configuration

I do not have a floppy drive on my laptop. I only have a non-boot XP cd. I'm know computer hardware pretty well, but am not so well versed on the software side. I need to keep my data that is on my machine. I would appreciate any help you can offer. Please keep it simplistic if possible.

Thanks!!