ergent, os help needed

pc specs are win xp on a dell demention 3000. ok forget adobe i have bigger problems. with the install of adobe it added a program NOS & google tool bar. I have uninstall adobe & NOS, can not take google tool bar off access is denide. I ran disc clean up, ccleaner, defrag. then I rebooted the pc. on restart this is the message I got on a black screen!!! NTLDR is missing, press ctrl, alt, del to restart. on restart I am getting same message. I do have os disc & driver discs. is there a way to fix this with out losing important info on my pc?please use JGAZZO@rochester.rr.com. Thanks guys, Dee:cry

 

Ok this prob is now took care of. I went ahead and did a re-format. Just wanted to let ya'll know.
Dee