Perform System Restore At times, a faulty Windows update, a rogue app, or unwanted system changes can cause your Start menu to disappear unexpectedly.

How to replace the Windows 11 Start menu with a classic design Before you can change the Start menu design, you have to install the Open-Shell-Menu utility and then configure the settings.

The Open-Shell project allows you to bring back the classic Start menu from Windows 7 to 11, and here's how to use it.