WORST PROBLEM EVER!!!

i got a new custom made computer with 64 bit windows edition...

i then installed 3Ds Max 8 which cost me roughly £4,000 ($7,500) i had some small problems so i got this freeware thing called registy cleaner...

i used it and it deleted some 'unwanted files' (unwanted as in files worth more than their whole company!!) i now cannot get into 3Ds Max and i can't uninstall it, reinstall it, or repair it, windows says 'fatal error during installation'...

plz HELP me seeing as i am an animator and i can't do my Job without this, and i don't wanna buy a new computer!

Any help seriously appreciated (sorry i can't GIVE u money for ur help )

FireChaseri can get into safe MODE, how do i replace files?ah..well u SEE after this happened i (without thinking) deleted the registry cleaner...
can system restore get it back?I remember you
Take your computer and all your software to the shop and get them to do a fresh install of your OS & all your software.
Then get them to set you up a lowly user account to limit the damage you can do. Quote

I remember you

Try something a little more reliable like TuneUp Utilities.