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Corrupt boot sector?


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tf73's Avatar
tf73 tf73 is offline
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05-Apr-2008, 06:00 AM #1
Corrupt boot sector?
Vista SP1, 500GB disk, 4 partitions: recovery, system, data & other - running for about 6 months without issue...

Used Paragon Parition Manager 8.5 to resize partitions (shrink system, expand data), rebooted and now can't boot. If I try safe mode, the last driver listed is crcdisk.sys, then it blue screens and restarts (too quickly to read the blue screen).

In System Recovery options get "Operating System: Unknown on (Unknown) Local disk". Open a command prompt there and can only see the data partition & the system restore partition. If I try 'chkdsk c:' I get "the type of file system is RAW. CHKDSK is not available for RAW drives".

If I run Startup Repair, I get the following output:
Problem Event Name: StartupRepairV2
Problem Signature 01: System Disk
Problem Signature 02: 6.0.6000.16386.0.0.0.0
Problem Signature 03: 1
Problem Signature 04: 65537
Problem Signature 05: unknown
Problem Signature 06: CorruptBootSector
Problem Signature 07: 0
Problem Signature 08: 1
Problem Signature 09: FixBootSector
Problem Signature 10: 1168
OS Version: 6.0.6000.2.0.0.256.1
Locale ID: 1033

Looking at http://support.microsoft.com/kb/927392/en-us, if I try 'bootrec /scanos' I get 'Total Identified Windows Installations: 0'. I've tried the /FixMBR and /Fixboot options, didn't work.

Is this just a corrupt boot sector, or could the other partions be damaged too? What else can I try? I don't mind reinstalling Vista but would prefer to avoid it.

(I have an XP box I could host the Vista disk in if there's any suitable tools I could use to check / repair the disk).
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05-Apr-2008, 10:26 AM #2
Don't know if you can reverse what has happened; from Paragon Knowledge Base
http://kb.paragon-software.com/parag...jsp?catId=2124

Q: What is a Bootable Recovery CD?

A: Our Bootable Recovery/Copy CD is a special add-on developed as an alternative for Windows environment. It provides some opportunities when one can't use our software under Windows for certain reasons. All functions of our software products under Windows can be found on Recovery CD and even more:

You can create/format/delete partitions on hdd, when no OSes are available.
You can correct different unbootable situations using Update MBR, changing partitions' properties, editing 'boot.ini' file, etc. More powerful tool 'BootCorrector' is available for Professional and Server versions.
When applying operations you can see directly the process taking place and its immediate results.
You can restore system partition and operate other locked partitions for OSes, which don't have BlueScreen mode (Windows 9x/ME). In DOS mode not all hardware is supported (USB/Firewire devices, some RAIDs).
You can perform operations, which are unavailable due to software incompatibilities under Windows.
====================================
Are you able to access the Recovery Partition and if so, does it allow for a repair install of Vista as opposed to wiping everything clean?
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05-Apr-2008, 06:26 PM #3
I can access the vista recovery partition, but it can't see my vista installation. I can see the data partition and copy off the files i need, plus it's backed up with carbonite, i might just bite the bullet and reinstall...
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05-Apr-2008, 07:09 PM #4
Chances are that you changed the partitions but the MBR is still the same. Try booting from the Vista DVD and running a startup repair.

Unless you want to reinstall, you might use bootrec.exe from the DVD command prompt to repair the boot.

http://support.microsoft.com/default.aspx/kb/927392
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Last edited by Elvandil; 06-Apr-2008 at 04:15 PM..
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06-Apr-2008, 05:22 AM #5
Hi - tried bootrec previously, didn't work. Output with the '/rebuildbcd' option is:

Successfully scanned Windows installations.
Total Identified Windows Installations: 0
The volume does not contain a recognized file system.
Please make sure that all required file system drivers are loaded and that the volume is not corrupted

The /fixmbr and /fixboot options both return 'the operation completed successfully', still can't boot however

Last edited by tf73; 06-Apr-2008 at 05:23 AM.. Reason: additional info
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06-Apr-2008, 06:16 AM #6
Have you tried running the Command Chkdsk /r on that drive
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06-Apr-2008, 06:35 AM #7
Yes, as per the original post, I get "the type of file system is RAW. CHKDSK is not available for RAW drives".
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06-Apr-2008, 07:16 AM #8
You could try Recover My Files and use the Complete Format Recover has worked for me in the past to retrieve data
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06-Apr-2008, 04:53 PM #9
Yes, CHKDSK doesn't work with RAW drives. I've rebuilt now, all OK
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06-Apr-2008, 05:25 PM #10
The partition table probably contains invalid information. Recovery or editing is a possibility.

Have you reinstalled now?
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06-Apr-2008, 06:13 PM #11
Yes, reinstalled Vista. In the end my data partition was OK, so just needed to install OS and apps
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