Task Manager in Windows is one of the most useful apps. In general, the task manager gives you a wealth of information about your system, running processes, startup applications, and more. As good as it is, under certain circumstances, like in professional and office environments, you might want to block task manager so that no one can access it. If that's the case, let me show the steps to disable task manager on Windows.
Note: Only disable the task manager when it is absolutely necessary and if you know what you are doing. Blocking task manager by disabling it can be inconvenient to you and other users using the system. This is especially true in educational environments where students are sometimes forced to force quit programs and dev tools via the task manager.
#1: Group Policy to Disable Task Manager
There is a dedicated policy in the Group Policy editor to quickly disable the task manager. If you are using Windows 10 Pro or Enterprise version, follow this method.
1. First, open the run dialog box, type
gpedit.msc and click on the Ok button to open the Group Policy Editor.
2. Once the group policy editor has been opened, you can see different folders on the left panel. Here, go to the "User Configuration -> Administrative Templates -> System -> Ctrl + Alt + Del Options" folder.
3. From the folder, find and double-click on the "Remove Task Manager" policy.
4. The above action will open the policy properties window. Here, select the "Enabled" option and click on the Apply and Ok buttons to save changes.
5. Reboot Windows to apply the changes you just made.
After restarting, you can no longer access the task manager as it is disabled at the system level. If you try to open the task manager, you will get an error message something like the blow one.
To enable the task manager, open the policy we just modified and select the "Not Configured" option.
#2: Registry Method
On Windows 10 Home version, you need to change registry value to disable task manager. This is because the Home version users won't have access to the Group Policy Editor. The good thing is, it is pretty easy. All you have to do is create a single key and you are good to go. Before editing, create registry backup.
1. Open the Registry Editor by searching for it in the start menu.
2. In the Registry editor, copy the below path, paste it in the address bar and press
Enter. You will be automatically taken to the target folder.
3. On the right pane, right-click on empty space and select "New -> DWORD (32-bit) Value" option.
4. Name the value as "DisableTaskMgr".
5. Double click on the DisableTaskMgr value. Enter "1" in the value data field and click on the "Ok" button.
6. To make the changes take effect, restart the system.
After restarting, you and other users on the system can no longer access the task manager. If you try to access the task manager, you will be greeted with an error message something like the below one.
To enable task manager via the registry, either change the value data of DisableTaskMgr from 1 to 0 or just delete the value by right-clicking and selecting Delete.
That is all. If you like this article, do check out different ways to lock Windows 10.