Task Manager Disabled By Administrator

Pressing Ctrl+Alt+Del and a pop-up saying it has been disabled by Admin.

To fix it.
1. Click on Start - Run
2. Type in REGEDIT and hit Enter
3. Open HKCU\Software\Microsoft\Windows\CurrentVersion\Policies \System
4. On the right panel, double click on DisableTaskMgr and change it’s value to 0 from 1
5. Similarly, navigate to HKLM\Software\Microsoft\Windows\CurrentVersion \Policies\System
6.On the right panel, create a new DWORD value, name it as disable task manager and enter its value as 0

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