Usually we use the Ctrl+Alt+Del key combination to open the Task Manager. Of course, there are other ways to open it. Recently, a user reported that when he used the Ctrl+Alt+Del key combination to open the Task Manager, he found that it was invalid and could not be opened no matter how hard he pressed it. What was going on? It may be that the shortcut keys have been changed by other software, causing the shortcut keys to become invalid. The following editor will teach you how to deal with the invalid shortcut keys of Windows 7 Task Manager.

The details are as follows:

1. Press "win+r" at the same time to open the run window;

2. Enter the command gpedit.msc and confirm to open the Group Policy Editor;

3. Open "User Configuration">>"Administrative Templates">>"System">>"Ctrl+Alt+Del Options" in sequence;

4. After expanding the Ctrl+Alt+Del option, we can see 4 projects opened using the Ctrl+Alt+Del hotkey combination on the right side of the window. We directly delete these 4 projects, and then re-set the Ctrl+Alt+Del option to call out the task manager of the Win7 system, save and confirm, and then exit. (If it cannot be deleted, you can set it to not configured)

5. When we return to the desktop, press the Ctrl+Alt+Del hotkey combination on the keyboard to directly call out the task manager of the Win7 system.

The above is the solution to the failure of Windows 7 Task Manager shortcut keys. I hope it can help you.