When you try to remove a partition, stripe set, or mirror set in Disk Administrator, you may receive the following error message:
The drive cannot be locked for exclusive use.
This behavior can occur if a file is open on the volume that you are trying to work with. A file is open when:
- A paging file is located on the volume.
- A program that was started from the volume is still
- A program that is running has loaded a .dll file from the
- A program has a file open on the volume.
- A program's current folder is on the volume.
This behavior can also occur even when there are no files open on the volume because a service that is running on the computer may place a lock on the volume.
To resolve this issue, perform the following steps, and try to gain access to the volume after each step, and if the issue is resolved, do not finish the remaining steps:
- Make sure that all files and programs are closed.
- Stop all services except those required for the most basic
- If you were running Microsoft Mail or Microsoft Schedule+, start
Mail, and then, on the File menu, click Exit and Sign
Out to stop any hidden processes.
- If you were running Microsoft Outlook, start Task Manager, and
then stop the Outlook.exe process if it appears in the list
on the Processes tab.
- If you run a Systems Management Server (SMS) client, use the
Kill.exe program in the Psstools folder on the Systems
Management Server CD-ROM, or use Process Viewer in the Microsoft
Windows NT Resource Kit to stop the following processes:
- If there is a paging file on the volume, define a paging file of
sufficient size on another volume, remove the one on the volume
where you are trying to gain access, and then restart the
- If you log on to the computer with a logon script containing an
SMS batch file, remove the batch file from the logon script, and
then log on again.
- To make the volume inaccessible to any processes and to ensure that Disk Administrator can lock the volume:
- Start Disk Administrator.
- On the Tools menu, click Assign Drive
- Click Do not assign a drive letter, and then
- On the Partition menu, click Commit Changes
- Quit Disk Administrator, and then restart the computer.
Article ID: 242119 - Last Review: October 26, 2013 - Revision: 2.0
- Microsoft Windows NT Server 4.0 Standard Edition
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