Hi Anders Oostdyk,
Welcome to post in Microsoft Community.
According to your description, I knew that you were prompted to enter the Bitlocker recovery key when system started up, but it still could not be recovered after entering it. Is that right?
First, you may try the follow steps to breaking out of a BitLocker recovery loop. Try these steps only after you have restarted your device at least once.
- On the initial recovery screen, don't enter your recovery key, instead, select Skip this drive.
- Navigate to Troubleshoot > Advanced options, and select Command prompt.
- From the WinRE command prompt, manually unlock your drive:
manage-bde.exe -unlock C: -rp <recovery password> - Suspend operating system drive protection:
manage-bde.exe -protectors -disable C: - Once the last command is run, you can exit the command prompt and continue to boot into your operating system.
If you still cannot recover after confirming the correctness of the recovery key, we are sorry that you can only use your device again by reinstalling the system. Because Bitlocker encryption encrypts the entire disk, if you can't get into WinRe, then any fix is unavailable.
Before reinstalling, please back up your data, and you can remove the hard disk from current device and connect it to another computer as an external disk(if you have no relevant experience, you can find your device manufacturer or someone with relevant experience for help).
Step-by-step steps to make a boot disk in MCT
- Back up your data,
- Prepare a flash driver with at least 8GB (Pay attention to backup data, because creating a boot disk will erase all data of the flash driver). Then operate it on another Windows computer.
- Visit Download Windows 11 (microsoft.com) **** and click "Download Now" under "Create Windows 11 Installation Media" to download MCT (Media Control Tool).
- Run the MCT, select "Create installation media (USB flash drive, DVD or ISO file) for another PC”, and then choose Language, Version, Architecture (if you are not sure about these, choose "Use the recommended options for this PC"), then select "USB flash drive" in the "Select Media to Use" interface, then make a boot disk.
- Boot from the USB flash drive after completion, and execute the installation program.
And you can access **** How to: Perform a Clean Install or Reinstall of Windows 10 - Microsoft Community **** for specific installation steps.
Then about the question of recovering data after Bitlocker encryption, it is out of scope for the Answers Support Community. The best place to get help for Bitlocker is Microsoft Docs, which is intended to support more advanced users such as yourself.
You can visit the link below for more information related to Bitlocker, hope it will help you.
Where can I find my BitLocker recovery key?(microsoft.com)
And you can visit Microsoft Docs-Security(microsoft.com) & Microsoft Docs-Windows-11(microsoft.com) to post your question.
I won’t be able to help further myself, but I will leave this question open in case any of our amazing volunteers has some insights for you.
Best Regards,
Mosken- MSFT | Microsoft Community Support Specialist