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Enable LBA message

By dmowatt ·
I would like to know the entire suggested process to correct the issue of scandisk not completing because it reports that I should enable LBA in the BIOS to claim back some incorrectly identifyied or lost clusters on the HD. Can a simple BIOS upgrade fix this or should I really enable LBA as stated? Also, there seems to be a common denominator with the PC's I have seen with this problem lately - the Klez virus and damage done to the outbox in Outlook Express. Any suggestions will help.

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Enable LBA message

by TheChas In reply to Enable LBA message

CAUTION!!! Changing the hard drive configuration in BIOS settings can cause the loss of all DATA.
Back up any critical files before proceeding.

The question here, is what were the drive settings when it was partitioned and formated?
If you can determine the settings, then set BIOS to match.

You can try setting the drive to LBA mode. However, if the drive was originally setup in a different mode, you are at risk of loosing your files.

If you are not sure, then do the following:
Back up all data and settings.
Verify the drive mfgs recommended settings.
Enter BIOS settings, and verify that the drive is set to the correct mode. (Auto-detect "should" set the mode correctly.)
Boot from the OS startup floppy.
Run fdisk /mbr
Re-boot,
Run fdisk, and delete all partitions,
Re-boot,
Run fdisk, and setup partitions as desired.
Reboot, and format the drives.
Re-install the OS, device drivers, updates, and applications.

For any serious virus, this is what you should do to bring performance back to "normal".

Chas

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Enable LBA message

by dmowatt In reply to Enable LBA message

To answer the question about the drive settings, all I can say is that I do not know. It is an IBM clone custom built by a client's ISP/PC service in another state. This is an older system that I just recently started work on for a Klez virus infection. At this point, I am not sure that the virus had anything to do with the messages recieved when doing a scandisk. The challenge for me has been to try to safely recover the lost clusters by changing the BIOS as directed by Windows scandisk. I also want scandisk to operate properly. The main question I had was if upgrading the BIOS or changing the settings to LBA mode was the route to take. Or should I believe some of the warnings about doing so? And to possibly do this without formatting and Fdisking.

Thanks!!

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Enable LBA message

by TheChas In reply to Enable LBA message

Okay, since your goal is file recovery, I would default to the settings that the system BIOS is set for at the moment.

As I statted in my first answer, you can loose everything if you change the drive settings after the drive is formatted.

Thescandisk warning is telling you that the drive is not setup in it's most optimum configuration. And, yes scandisk can have problems in this situation.

I would choose a 3rd party recovery utility to retrieve the files.
Then set the BIOS to use LBA mode, fdisk, and format the drive, then start over.

Chas

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Enable LBA message

by dmowatt In reply to Enable LBA message

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by dmowatt In reply to Enable LBA message

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