How to Disable Task Manager in Windows 8 and Windows 10
If you wish to disable the Task Manager in Windows 10 or perhaps want to disable it in Windows 8 then this guide is something that can help you accomplish that, please not that Task Manager can be useful for killing processes which are causing system issues.
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Method 1: Local Group Policy Editor
1. Press the Windows + R key on your keyboard
2. A run Window will appear, now type gpedit.msc and click on OK
If you get a message that the program cannot be found, then your Windows version does not have Group Policy editor, it’s only included in Windows 8 Pro, Enterprise en Windows 10 Pro (and higher) skip to the registry edit method
3. Under User Configuration unfold Administrative Templates
4. Now unfold System
5. Now Unfold Ctrl+Alt+Del Options
6. Double-click Remove Task Manager and choose Enabled
7. Click on OK and then close Group Policy Editor
You might need to sign-out and sign-in for the changes to take effect.
Method 2: Registry Edit
1. On your keyboard press the Windows flag and the R key at the same time (Windows +R) or open Start.
2. Now type Regedit.exe (1) and click on OK (2)
3. Now Unfold HKEY_CURRENT_USER
4. Then Unfold Software
5. Then Unfold Microsoft
6. Then Unfold Windows
7. Then Unfold CurrentVersion
8. Then Unfold Policies
9. Then Unfold System
10. Now double-click on DisableTaskMgr and change the value of DisableTaskMgr to 1
If the key does not exists then right-click an empty spot and choose New then choose DWORD.
11. Click on OK and close Regedit. A reboot might be neccesarry for the changes to take effect upon your system.
If you wish to disable this tweak at a later moment just repeat the steps above and change the value back to the orginal value, which was 0. If you have any questions regarding this tweak, please feel free to ask them.