What OS are you running? If you have a recovery disk, use it, that's what it's for. If not, you may have to do something more drastic. whatever you do, DO NOT try to download a copy of that file from the interweb.
What OS are you running? If you have a recovery disk, use it, that's what it's for. If not, you may have to do something more drastic. whatever you do, DO NOT try to download a copy of that file from the interweb.