Failed to run system api

[Vasber]

Trying to encrypy disc C with Windows 11 Home
when saving Recovery Key - I am getting message that Pre-OS restart is needed to continue
When I click NEXT button, PC restarts and then I am getting message 
Failed to run system api 0x03E6001501510000
BitLocker version 8.7
adding log file

[admin]

According to your description the error seems to occur in Pre-OS, please follow the steps below to copy the log file under Pre-OS WinPE to you local disk and then send it to us.
1. Waiting for the error message appears
2. Open the save log file dialog ("" > "Save logs")
3. Save the log file to one of your local disk
4. Reboot the computer, then send the log file to us.

[mkors]

same problem here... please check out my post