Solved Why "Test Mode" on the Screen

I use Windows 11 Pro on my laptop. Yesterday I upgraded per the Microsoft upgrade options (Win-Key - I).

Today I see "Test Mode Windows 11 Pro Build 26100.ge_release.240331-1435" in the lower right-hand corner of my display. Have never had this message before.

Any input as to why this message has appeared and its meaning would be appreciated.

Many thanks
F Shaw

Hello mate,

You would normally see "Test Mode" like that when disabling driver signature enforcement like in option three below. You can just enable it again.

Thank you, very helpful to understand these commands.

I have turned off the message.

Regards,
F Shaw

You're most welcome.