I was having some imp documents inC:\WINDOWS\pchealth\helpctr\… Corporation,L=Redmond,S=W..?

C:\WINDOWS\pchealth\helpctr\Vendors\CN=M… Corporation,L=Redmond,S=Washington,C=US\… Assistance\Escalation\Unsolicited. folder. but it was deleted by computer while installing service pack 3. how can i get back the documents.please help- me