Hello,
If it will not accept the key, it can mean that the key is wrong or it was for an older encryption.
If you cannot find the key at all, you will have to clean install.
Video tutorial is available here:
https://www.microsoft.com/en-us/windowsinsider/...
To perform a clean installation of Windows 11 using the Windows Media Creation Tool. You do need to get access to another computer so you can download the Windows installation files into a flash drive, then use the flash drive to help your computer. Hopefully you have a spare computer, or you can have friend or family help you.
The following steps should be done on a working Windows computer:
Download the Windows Media Creation Tool from Microsoft's official website.
https://www.microsoft.com/software-download/win... click on the "download now" button under "Create Windows 11 Installation Media"
Run the tool and select "Create installation media for another PC."
Choose "USB flash drive" as the media to use for the installation and select "Next."
Connect a USB flash drive with at least 8 GB of free space to your computer.
Select the USB flash drive you want to use, and then select "Next."
The tool will then download the required files and create the installation media.
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Now these steps will be done on your problematic computer:
Go to the computer's BIOS boot menu to have it boot from the USB drive.
Follow the on-screen instructions to install Windows 11, making sure to choose "Custom install" and select the option to delete all existing partitions.
Once the installation is complete, you'll have a clean installation of Windows 11 on your computer.
