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Partition has vanished

Last response: in Business Computing
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August 4, 2014 1:45:59 PM

We have three computer systems, one has XP on it which has a partition J: its our "office" computer. We have two main cashier systems running windows 7 out front that open the program and access all data off the J: drive from the office computer. This is a mapped drive for them. The cashier systems work fine!, the office computer however has no trace of this J: drive (partition) anymore it even changed the target of the shortcuts on desktop to a c: location which of course doesn't work because the program is installed on the J:...The front ones still target the J:/ location just fine. I have tried searching diskpart, and computer management but J: has completely vanished!! help?

More about : partition vanished

August 4, 2014 2:48:30 PM

• FROM DISK MANAGER
See if the Disk Manager detects the J partition: Start / My Computer / right click and select Manage, and press Enter / select Disk Manager
1. if the partition is on view without a drive letter, right click on it, select "Change drive letter and paths...." / Click "Change" / Select a drive letter / click OK twice and exit the Disk Manager.
2. If the partition is on view with drive letter J but it's not visible through Windows Explorer, use the same method to assign a different letter to it, and remap the drive from the front computers.
3. If the partition is not on view, do the following.

• FROM DISKPART
See if the "J" drive is missing the letter so you can reassign it, and if the letter does not take, you might try assigning a different drive letter and later map the drive from the front computers.

Start / Search / type: CMD and press Enter

Type: DISKPART

Diskpart should be ready for inputting commands.

Type: list volume
Something like this should appear on display:

Volume ### Ltr Label Fs Type Size Status Info
---------- --- ----------- ----- ---------- ------- --------- --------
Volume 0 C SG40GB1 NTFS Partition 18 GB Healthy Boot
Volume 1 SG40GB2 NTFS Partition 18 GB Healthy System

If the partition where the cashier system is installed has no letter assigned, type:

DISKPART> "select volume 1" and press Enter

Windows answer: "Volume 1 is the selected volume".

Type next: DISKPART> "assign letter J"

Windows answer: "DiskPart successfully assigned the drive letter or mount point".

Next type: DISKPART> Exit

--------------------------------------

• FROM A PARTITION MANAGER
If the J partition does not appear on Disk Management, install Active Partition Manager to see if the partition is hidden and a drive letter can be assigned to it. This partition manager can see hidden partitions that other programs of the type can not see.
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August 4, 2014 3:02:52 PM

Chicano said:
• See if the Disk Manager detects the J partition: Start / My Computer / right click and select Manage, and press Enter / Disk Manager / if the partition* is on view without a drive letter, right click on it, select "Change drive letter and paths...." / Click "Change" / Select a drive letter / click OK twice and exit the Disk Manager. If the partition is not on view, do the following.

• Use DISKPART to see if the J drive is missing the letter so you can reassign it or if the letter doesn not take, you might try assigning a different drive letter and later map the drive from the front computers.

Start / Search / type: CMD and press Enter

Type: DISKPART

Diskpart should be ready for inputting commands.

Type: list volume
Something like this should appear on display:

Volume ### Ltr Label Fs Type Size Status Info
---------- --- ----------- ----- ---------- ------- --------- --------
Volume 0 C SG40GB1 NTFS Partition 18 GB Healthy Boot
Volume 1 SG40GB2 NTFS Partition 18 GB Healthy System

If the partition where the cashier system is installed has no letter assigned, type:

DISKPART> "select volume 1" and press Enter

Windows answer: "Volume 1 is the selected volume".

Type next: DISKPART> "assign letter J"

Windows answer: "DiskPart successfully assigned the drive letter or mount point".

Next type: DISKPART> Exit

--------------------------------------

• If the J partition does not appear on screen, install Active Partition Manager to see if the partition is hidden and a drive letter can be assigned to it. This partition manager can see hidden partitions that other programs of the type can not see.


Hi, thanks for the reply, I have tried all this, I am completely confused...I checked again, and both front computers show the location for the program being "office" j:/abacus2/abc.bat and clicking open location opens the j: drive to navigate or whatever. But the location where this program was installed 7 years ago a partition labeled J: off the c: man drive is no where to be found on the office computer and the program will not run on this pc either the location of the icon changed to c:\abacus2\abc.bat which of course will not work. There has never been an issue till a couple days ago when I tried to open program as usual on office computer. Its not hidden, and no partition program sees it only my c: logical drive. Lost.
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August 4, 2014 3:29:09 PM

Have you tried "Active Partition Manager"? as I said before, this program can see most hidden, unallocated, or missing partitions and it's possible it can reassign drive letter J or a different letter if necessary.

Have you tried executing "c:\abacus2\abc.bat" directly from Windows Explorer?.

Seven years is a long time for a hard drive or for Windows XP so the HD may be having issues or XP may need a reinstall. You could also have the Cashier System reinstalled.

Install Hard Disk Sentinel to see how the HDD health and performance reads. If the HDS scan turns out good, you may have to reinstall Windows XP... if trying to avoid that, see if cleaning old system junk with CCleaner helps, and scan the computer with Malwarebytes Anti-Malware as malware can make unexplainable changes such as moviing information from-to drives.

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August 4, 2014 3:39:06 PM

Chicano said:
Have you tried "Active Partition Manager"? as I said before, this program can see most hidden, unallocated, or missing partitions and it's possible it can reassign drive letter J or a different letter if necessary.

Have you tried executing "c:\abacus2\abc.bat" directly from Windows Explorer?.

Seven years is a long time for a hard drive or for Windows XP so the HD may be having issues or XP may need a reinstall. You could also have the Cashier System reinstalled.

Install Hard Disk Sentinel to see how the HDD health and performance reads. If the HDS scan turns out good, you may have to reinstall Windows XP... if trying to avoid that, see if cleaning old system junk with CCleaner helps, and scan the computer with Malwarebytes Anti-Malware as malware can make unexplainable changes such as moviing information from-to drives.


Hi, yes sorry I tried Active Partition Manager, doesn't show. Before this happened the J: partition was always visible on the office computer, which it should be since that's where its installed/been forever. I am just confused how the two front computers operated normally off this "invisible" J: drive still and will open the whole drive for me to view all the files stored there. Yet, the computer that actually hosts this drive can't even find it, access it, or view it. Doesn't make sense at all. The two front computers where upgraded 8 months ago to windows 7, I then just mapped the office J: drive and never an issue. I want to upgrade office to windows 7 yes, but in the meantime I need to figure out how this can vanish.
"Have you tried executing "c:\abacus2\abc.bat" directly from Windows Explorer?."
This location does not exist... it use to be J:\abacus2\abc.bat on all computers but the office one changed the location even to c: from j: since j: went missing.
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August 4, 2014 4:13:36 PM

bjtaz44 said:
I am just confused how the two front computers operated normally off this "invisible" J: drive still and will open the whole drive for me to view all the files stored there. Yet, the computer that actually hosts this drive can't even find it, access it, or view it. Doesn't make sense at all. The two front computers where upgraded 8 months ago to windows 7, I then just mapped the office J: drive and never an issue. I want to upgrade office to windows 7 yes, but in the meantime I need to figure out how this can vanish.
"Have you tried executing "c:\abacus2\abc.bat" directly from Windows Explorer?."
This location does not exist... it use to be J:\abacus2\abc.bat on all computers but the office one changed the location even to c: from j: since j: went missing.


Agree it doesn't make sense but it happens.. I have experienced it.. partitions can hide, but keep existing otherwise it would not be accessible from the front computers so be assured, the partition is still there, you just have to find the way to access it. See if creating a short cut to the partition... for example go to My commputer, select drive C and select create shortcut... open the shortcut properties, and edit the path replacing C with J and next execute the shortcut. I have accessed hidden partitions on Windows XP this way. You can also go to Start / Run / and type J: and press Enter. If the partition opens, browse to the program's executable, and create a new shortcut which you can cut and paste on your desktop.

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August 4, 2014 4:35:06 PM

Chicano said:
bjtaz44 said:
I am just confused how the two front computers operated normally off this "invisible" J: drive still and will open the whole drive for me to view all the files stored there. Yet, the computer that actually hosts this drive can't even find it, access it, or view it. Doesn't make sense at all. The two front computers where upgraded 8 months ago to windows 7, I then just mapped the office J: drive and never an issue. I want to upgrade office to windows 7 yes, but in the meantime I need to figure out how this can vanish.
"Have you tried executing "c:\abacus2\abc.bat" directly from Windows Explorer?."
This location does not exist... it use to be J:\abacus2\abc.bat on all computers but the office one changed the location even to c: from j: since j: went missing.


Agree it doesn't make sense but it happens.. I have experienced it.. partitions can hide, but keep existing otherwise it would not be accessible from the front computers so be assured, the partition is still there, you just have to find the way to access it. See if creating a short cut to the partition... for example go to My commputer, select drive C and select create shortcut... open the shortcut properties, and edit the path replacing C with J and next execute the shortcut. I have accessed hidden partitions on Windows XP this way. You can also go to Start / Run / and type J: and press Enter. If the partition opens, browse to the program's executable, and create a new shortcut which you can cut and paste on your desktop.



Thanks for the help/info...I just tried what you said, no go...says not a valid drive location, ugh frustrating. Scanned for viruses just be sure and its clean also. Not sure what to do, back up the files from the front and upgrade the system I guess, just wish I could figure this out! lol.
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Best solution

August 4, 2014 5:45:18 PM

If by any chance you have a fourth computer, see if connecting the hard drive to it, either install it internally or via USB. You should be able to access it or at least confirm that the partition is in good condition but just not accessible from Windows XP on C drive.

One more thing to try is repairing the MBR from the Windows XP CD Recovery Console...
Boot the computer to a Windows XP CD / Enter to the Recovery Console following the instructions on the guide, and type FIXMBR followed by FIXBOOT and exit.
http://www.windowsnetworking.com/articles-tutorials/win...

If that doesn't help, you can repair install Windows XP to recover access to the partition. Next up could be a Windows XP clean installation but you may have to reinstall the Cashier System program, but instead upgrading to Windows 7 would be more adviseable.

Still another possible solution is to install a Partition recovery program to diagnose and possibly repair whatever issues the partition has. Minitool Partition Wizard free Edition includes a Partition Recover program.
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