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Error message when you try to open Task Manager on a Windows XP-based computer: "Task Manager has been disabled by your Administrator"
Article ID: 913623 - View products that this article applies to.
When you try to open Task Manager on a Microsoft Windows XP-based computer, you receive the following error message:
Task Manager has been disabled by your Administrator.
This issue occurs when one of the following conditions is true:
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756To resolve this issue, set the value of the DisableTaskMgr registry entry to 0 (zero).
(http://support.microsoft.com/kb/322756/ )How to back up and restore the registry in Windows
Note This registry entry will revert to its original setting, and Task Manager will be disabled again unless one of the following actions is performed: