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trying to recover allocation unit ...

By Daz'n'Ash ·
I have an old Acer 486 Laptop here and it looks to me like the HDD might be pookered. I have tried to scandisk it and got the message that scandisk could not repair. It has had windows 6.2 on it. I tried to format it and it has been on all night and says trying to recover allocation unit ... now at the time I poost this question it is unit number 42, 260. It is an old 400 MB HDD, Seagate model ST9420AG.

How far will it continue to recover allocation units? Is it even worth letting it run like that?

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trying to recover allocation unit ...

by rickyrattlesnake In reply to trying to recover allocat ...

It should repair it if you let it run. If not, reinstalling the OS should repair the FAT

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trying to recover allocation unit ...

by Daz'n'Ash In reply to trying to recover allocat ...

I let it run, it did not repair

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trying to recover allocation unit ...

by kiwimagic In reply to trying to recover allocat ...

"It has had windows 6.2 on it."? You mean DOS 6.2?

Boot from floppy, and try to get everything you want to keep, onto another system/drive.

with a boot disk that has scandsk on it, FDISK and "FORMAT /C", followed by scandsk with the surface option. If successful, the FAT got horribly mashed. If there are bad sectors, they will show in the scan disk progress display. If there are bad sectors near the beginning, consider junking it. The drive may give good service for some time, or, may crap out at any time. Remember, if there are any surface inperfectons, the heads will get a beating every time the heads pass over that track, and like a pot hole, will only get worse.

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trying to recover allocation unit ...

by Daz'n'Ash In reply to trying to recover allocat ...

I mean windows 6.2, DOS 6.2 was also installed. Tried your suggestion a few times, no success.It Appears the bad sectors are at the beginning of the drive. I have tried some Seagate utilities and it says there is physical damage to the drive and cannot be repaired.

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trying to recover allocation unit ...

by Ann777 In reply to trying to recover allocat ...

Replace the drive.

Recovering allocation units indicates that it's trying to read the same sector over and over again, trying to get some data out of it... but if you hear clicking and clacking sounds (as the heads slip) it could run for quite a while -- like days. I've seen people run these disk recovery tools overnight and be only a little bit further in the morning (or have it crash during the night).

If you don't need the data from it... just replace the drive. A 400 MB drive is not worth the time to recover if you do not need the data from it.

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trying to recover allocation unit ...

by Daz'n'Ash In reply to trying to recover allocat ...

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