Surface Pro 5: Can not remove write protection from disk

Job ID: 36151857

Budget: ₹600 – ₹1,500 INR

On my Surface Pro 5 Windows 10 crashed and I want to do a windows 11 clean install.

With Media Creation Tool I created a boot stick.

I am not able to install Windows because I can not remove or format the old partitions.

With diskpart -> clean I am not able to clean the disk.

I am not able to remove Bitlocker drive encryption because of write protection (0x80070013).

Diskpart ->attributes disk clear readonly does not work (attribute could not be deleted.)

Diskpart -> detail disk: Current Read-only State : Yes

System recovery without boot stick also does not work.
Related categories: Computer Support Computer Repair