Task Manager has been disabled by your administrator

Issue: Error Message: "Task Manager has been disabled by your administrator"

Symtoms: When you try to open Task Manager, the following error may occur:

"Task Manager has been disabled by your administrator"

Solution: This error is caused if the DisableTaskMgr restriction is enabled. To enable Task Manager, try one of these methods:

IMPORTANT: If this restriction was enabled in your system without you doing anything or without your knowledge, then it`s highly likely that a Virus has blocked the usage of Task Manager in your system by enabling the DisableTaskMgr policy via the registry. I strongly suggest that you perform a thorough checkup of your system immediately. Steps listed in the Resolution section of this article helps you unblock the Task Manager, but that does not remove the Virus (if any) from your system.

Manually configure DEP In Windows XP

If you are logged on as an administrator, you can manually configure DEP to switch between the OptIn and OptOut policies by using the Data Execution Prevention tab in System Properties.

1. Click Start--> click Run--> type sysdm.cpl--> and then click OK.

2. On the Advanced tab--> under Performance--> click Settings.



3. On the Data Execution Prevention tab--> use one of the following procedures:

1. Click Turn on DEP for essential Windows programs and services only to select the OptIn policy.

2. Click Turn on DEP for all programs and services except those I select to select the OptOut policy, and then click Add to add the programs that you do not want to use the DEP feature.

4. Click OK

Data Execution Prevention (DEP)

Data Execution Prevention (DEP) is a set of hardware and software technologies that perform additional checks on memory to help prevent malicious code from running on a system. In Microsoft Windows XP Service Pack 2 (SP2) and Microsoft Windows XP Tablet PC Edition 2005, DEP is enforced by hardware and by software.