Hi guys

Here is what i have.

1. A dell xps 1530 with Vista home premium, fully updated.
2. 4GB ram and over 30 GB free on drive c: where vista is installed.

the problem: after putting my laptop thru the airport security scanner, it froze while booting up. I restarted, and it gave me an error saying "registry file missing/corrupt".

Trouble shooting already done: I put in the OEM vista cd and tried to repair the installation.
The following tests were successful:

• check for updates
• system disk check
• disk failure diagnosis
• disk metadata test
• target os test
• volume content check
• boot manager diagnosis
• system boot log diagnosis
• event log diagnosis
• internal state check

Root cause found: registry corrupt
Repair action: registry roll back.

I also tried doing a chkdsk c: /f via the dos prompt. it corrected some errors, but it didnt result in a successful boot.

Please let me know how can i resolve this isue? I don't have a restore point.

Regards
Aditya

update:

i found 2 solutions.

1/ boot using the cd, if the startup repair tool doesnt work, run a chkdsk c: /f /r on the dos prompt.

2/ if u really cant repair, boot via an ubuntu cd, and copy all files to a backup, and reformat.

Here is a blog article on backing up using live ubuntu cd.

Yet Another Technology Site: How to recover your Windows files