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Windows Forum / Windows 98 / General Topics / May 2007

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invalid drive specification

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oops - 29 May 2007 05:11 GMT
Suppose format c: was interrupted by accident.  Then an attempt to
change to c: was greeted with "invalid drive specification."  Further
suppose that, after a reboot to A:, the hard disk partition D: is now
the CD-ROM, which used to be E:.

      Is there any way to get this mess straightened out while
recovering the files from the original d: hard disk partition?

              Thanks
John John - 29 May 2007 13:07 GMT
What does fdisk say about the partitions?  You may want to mount the
disk to another working Windows installation to salvage your files.

John

>   Suppose format c: was interrupted by accident.  Then an attempt to
> change to c: was greeted with "invalid drive specification."  Further
[quoted text clipped - 5 lines]
>
>                Thanks
oops - 29 May 2007 14:09 GMT
I was able to start Windows with errors, but this straightened out
the problem, so that it now recognizes C: and D:.

             Thanks, Alan
oops - 29 May 2007 15:13 GMT
The reformatting of C: is taking HOURS.  It is saying:

      Trying to recover allocation unit      xxx,xxx

Is there anything I can do to make this go faster without
repartitioning and losing data from the D: partition?

               Thanks, Alan
John John - 29 May 2007 15:25 GMT
I think your drive is on it's way to HD heaven!  Copy your data off the
drive while you still can and run a drive diagnostic on it.  The
diagnostic utility should be available at the drive manufacturers web site.

John

> The reformatting of C: is taking HOURS.  It is saying:
>
[quoted text clipped - 4 lines]
>
>                 Thanks, Alan
Don Phillipson - 29 May 2007 17:10 GMT
> The reformatting of C: is taking HOURS.  It is saying:
>
>        Trying to recover allocation unit      xxx,xxx
>
> Is there anything I can do to make this go faster without
> repartitioning and losing data from the D: partition?

Boot DOS from a floppy and use FDISK
(1) to remove the Primary DOS partition (your
old C: drive
(2) to create a new Primary DOS partiition.
Then reboot (to complete FDISK's changes)
and FORMAT C:

If this formatting takes unusually long, the
drive is too badly damaged to be useable.
If formatting takes only normal time, you
may wish to run the HDD manufacturer's
test routines before proceeding to reinstal
the OS on your new C: drive.

Signature

Don Phillipson
Carlsbad Springs
(Ottawa, Canada)

oops - 29 May 2007 18:47 GMT
I stopped reformatting, started Windows so it could find C: and D:
again, rebooted to DOS, ran scandisk, and then it reformatted fine!

          Thanks, Alan
Jeff Richards - 29 May 2007 21:44 GMT
This procedure will delete the contents of the D partition, and is therefore
not appropriate for the current situation.
Signature

Jeff Richards
MS MVP (Windows - Shell/User)

> snip <
>
[quoted text clipped - 11 lines]
> test routines before proceeding to reinstal
> the OS on your new C: drive.
Gary S. Terhune - 29 May 2007 18:46 GMT
You've got me confused. How in blazes can you be booting Windows (presumably
on the problem "C" partition) if it's in mid-reformat? On which partition
does Windows reside?

Signature

Gary S. Terhune
MS-MVP Shell/User
www.grystmill.com

>   I was able to start Windows with errors, but this straightened out
> the problem, so that it now recognizes C: and D:.
>
>              Thanks, Alan
oops - 29 May 2007 18:51 GMT
Gary,
          I was reformatting C: at the DOS prompt.  I pressed Ctrl-C
to stop.  I removed the boot disk from A: and cycled power.  It gave
me some errors about missing files, but it somehow started Windows.  I
was surprised, too!

> You've got me confused. How in blazes can you be booting Windows (presumably
> on the problem "C" partition) if it's in mid-reformat? On which partition
[quoted text clipped - 3 lines]
> Gary S. Terhune
> MS-MVP Shell/Userwww.grystmill.com
Gary S. Terhune - 29 May 2007 19:29 GMT
Ahh, so the format was interrupted before it totally destroyed the file
system.

Glad you got it sorted out.

Signature

Gary S. Terhune
MS-MVP Shell/User
www.grystmill.com

> Gary,
>           I was reformatting C: at the DOS prompt.  I pressed Ctrl-C
[quoted text clipped - 10 lines]
>> Gary S. Terhune
>> MS-MVP Shell/Userwww.grystmill.com
 
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