problem with SID number windows 7 64bit

a program called cursor fx plus

can i recover this SID number back i think this will solve my problem

You will need to reinstall

i didnt even know what this think is and then i saw my computer very strange i cant be admin in any account the last think i can do is to reinstall my windows

reinstall or run sysprep THEN reinstall

if i reinstall them im going to have the user i had before that think happened i mean i can acces to it?? to copy the files i want

I'm not 100% sure what will happen with your reinstallation - I would hope that the "windows old" folder would still be there but I can't be sure what it will do since the sid change.

i hope this will fix cause if not