system cant find a partition on hard disk

Hitachi Deskstar 7k1000.c hds721050cla36...
April 7, 2012 at 07:48:35
Specs: Windows XP, Pentium 4 2.8GHz/3gigs
I started my computer this morning and was using my finance software. When I went to back up the data, the soft ware couldn't find the partition where I back up. I went into computer management-storage and it shows the partition as unassigned. I am running XP-service pack 3. How do I get the computer to recognize the partition?

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#1
April 7, 2012 at 08:21:18
Depending on what you have plugged into USB ports when you attempt to store a backup, and/or changes you have made regarding how Windows is detecting drive letters assigned to partitions on internal hard drives, the drive letter for the partition the backup software expects to be able to back up to may have changed.

In that case, the partition is still there in Disk Management, there are no problems shown for it, but it has a different drive letter than it had when you last ran the backup program.

If which drive letter that has been assigned to the partition the program previously has backed up to HAS changed, you either have to
- change the drive letter of where the backups go to in the program
- or - if you can't do that - change the drive letter assignment situation so that the partition the backups go to is changed back to what the program expects.

Start - Run - type: diskmgmt.msc (click on OK or press Enter)

If the info in Disk Management shows the drive letter's space as unallocated or RAW, Windows is NOT detecting that it has been software partitioned using a method Windows recognizes (NTFS or FAT32) and formatted.
(Or the partition may be shown but it may have no drive letter assigned to it.)

If the drive letter is for a partition on an external hard drive or on a USB flash drive, or on a memory card, that problem is COMMON if you have damaged data on the device by unplugging the device' while Windows is running WITHOUT having clicked on the Safely Remove Hardware icon in your taskbar and choosing to STOP accessing the device BEFORE you unplugged it.

That problem can usually be fixed by using certain programs that can repair the data damage.

If the partition is on an internal physical hard drive, and you're sure it had data on it previously, the hard drive the partition is on may be in the process of failing.

.



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#2
April 7, 2012 at 09:28:52
If I go into computer management and right click on the partition showing as unallocated, my options are new partition or help. If I click new partition, can I just assign the old drive letter and then the system will recognize it?

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#3
April 7, 2012 at 10:05:57
What does it show in DIsk Management ?

That's selectable on the left when you click on Computer Management, or run the command I supplied.

You have not told us where the partition is.

Is it on an internal hard drive,
or on an external hard drive,
or on a memory card,
or on a USB flash drive ??

"If I click new partition, can I just assign the old drive letter and then the system will recognize it?"

That depends on where the partition is, and whether the drive letter you want to use is presently assigned to something else.

If the drive's space is showing up in Computer Management / Disk Management, Windows is already detecting the space on the physical drive, but it does not show up in My Computer or Windows Explorer until Windows recognizes that the partition has been software partitioned using some method Windows recognizes (NTFS or FAT 32 or FAT) and has been formatted, AND a drive letter has been assigned to the partition.

You can't make a new partition on a USB flash drive or on a memory card in Windows by default.

You can make a new partition on an external hard drive or an internal hard drive.

In either case, if you know you had data on the partition previously and you don't want to lose that data, you should NOT make a new partition (if that's possible) until you have tried using a program that can repair the data damage that is causing Windows to detect the drive's space as unallocated.

You assign a drive letter while making a new partition.

In any case, if the drive letter you want to use is already being used, you can change the drive letter assigned to anything to a different available drive letter, C thru Z, in Disk Management, EXCEPT that you can't change the drive letter assigned to the partition Windows itself has loaded from. You can change the drive letter of something that is using the drive letter you want to use to some other available drive letter to free up that drive letter.


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