Security Boot and Green screen and App control for business

Hello everyone,

My computer does not start if in the BIOS the Security Boot is enabled ( and I would prefer to have it activated)

This post come just after I found the solution for my previous problem that I posted a few hours ago.

Green screen Inaccessible_boot_device | Microsoft Community Hub

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Hello,

I have a problem with my computer since I launched a update yesterday evening I can not start my computer again.

When I’m starting it I have a green screen saying that my computer with windows insider did not start well and it will restart. The stop code is « INACCESSIBLE_BOOT_DEVICE ».

Then it restarts and show a blue screen with for the title I have « Recovery » (« recuperation » in French) with 3 options (code error : 0xc0000001)

-Enter to try again

-Esc to launch the recovery

-F8 to go to other 10 options (start in safe mode with command prompt for example)

but each option gives the same thing a freezing black screen with the brand of the computer and sometimes one « please wait » depending which option I choose 

before that I had problems but I asked ChatGPT to help me and it did not help but I don’t have the same option as before. ( before I could do advanced settings and launch the comand prompt but now I’m not even able to access the command prompt even when I chose «  safe mode with comand prompt »)

can you help me please ?

"
My previous problem came just after an update 
I had a green screen saying that my windows insider did not start well and I had to restart my computer. 
After the computer have restarted one first time a blue screen appears with " Recovery" and I could choose between different option.
With some help of Chatgpt, I was finally able to start my computer normally by desactivating the security boot. (It was what I was thinking)

But once my computer turned on, I realise that I was not able to start any of my app I installed. I can use default app like " Microsoft edge" for example but not firefox or Google chrome. I tried to turn on the security boot but when I do that I have once again the same problem as before ( green screen etc...).
I tried to re-install the update which failed ( because indeed, I think that the problems appeared because I launched an update and my computer runned off of battery when it was running) but the installation failed once again ( and this time with the charger plugged on).
I don't know what I need to do 
Someone can help me please ?

here is the screen of windows update 

Kind Regards 

Tom Magerat