How to Enable or Disable Task Manager in Vista and Windows 7

Information
If you find that the Task Manager option is grayed out (disabled) when you right click on the taskbar, then you may want to enable it again. You may also want to disable the Task Manager to prevent other user accounts from using it.
This will also add or remove Task Manager from the Windows Security screen when you press Ctrl+Alt+Delete.
You must be logged in as an administrator to be able to do the steps in this tutorial.

Warning
If you did not disable Task Manager, then it may have been done by some kind of malware or spyware. You should do a complete scan of your computer for a virus and other malware to be safe.

Tip
The Task Manager exe file is located at: C:\Windows\System32\taskmgr.exe
EXAMPLE: Enabled and Disabled Task Manager
NOTE: When the Task Manager is disabled, the CTRL+SHIFT+ESC does not work, Task Manager will not appear in CTRL+ALT+DELETE, and Task Manager is grayed out when you right click on the Task Bar.
EXAMPLE: ERROR MESSAGE
NOTE: You get this when you try to run taskmgr.exe .
METHOD ONE
Through the Local Group Policy Editor
1. Open the
all users,
specific users or groups, or
all users except administrators Local Group Policy Editor for how you want this policy applied.
2. In the left pane, click on
User Configuration,
Administrative Templates,
System, and
Ctrl+Alt+Del Options. (See screenshot below)
3. In the right pane, right click on
Remove Task Manager and click on
Properties. (See screenshot above)
4. To Enable Task Manager A) Dot Disabled or Not Configured and click on OK. (See screenshot below step 5A)
B) Go to step 6.
5. To Disable Task Manager A) Dot Enabled and click on OK.
6. Close the Local Group Policy Editor window. Your done.
METHOD TWO
Using a REG File Download
1. To Disable Task Manager A) Click on the download button below to download the file below.
Disable_Task_Manager.reg
B) Go to step 3.
2. To Enable Task Manager A) Click on the download button below to download the file below.
Enable_Task_Manager.reg
3. Click on
Save, and save the
.reg file to the
Desktop.
4. Right click on the downloaded
.reg file and click on
Merge.
5. Click on
Run,
Continue (UAC-Vista) or
Yes (UAC-Windows 7),
Yes, and then
OK when prompted.
6. Log off and log on, or restart the computer to apply.
7. When done, you can delete the downloaded
.reg file if you like.
METHOD THREE
Manually in Registry Editor
1. Open the Start Menu.
2. In the white line (Start Search) area, type
regedit and press
Enter.
3. If prompted by UAC, then click on the
Continue (Vista) or
Yes (Windows 7).
4. In regedit, navigate to the location below. (See screenshot below step 5A)
NOTE: If you do not have System, then right click on Polices and click on New and Key. Type System and press Enter. HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
5. To Disable Task Manager A) In the right pane, right click on a empty area and click on
New and
DWORD (32-bit) Value and type
DisableTaskMgr and press
Enter. (See screenshot below)
B) Right click on
DisableTaskMgr and click on
Modify. (See screenshot above)
C) Type 1 and click on OK. (See screenshot below)
6. To Enable Task Manager A) In the right pane, right click on DisableTaskMgr and click on Delete. (See screenshot below step 5A)
B) Click on Yes to confirm delete.
7. Close regedit.
That's it,
Shawn