I thought it was clever not to create a Microsoft account on my laptop. Turned out bitlocker was active (by an update, I don’t know, I never activated it manual

I thought it was clever not to create a Microsoft account on my laptop. Turned out bitlocker was active (by an update, I don’t know, I never activated it manually). Motherboard fails, no key backup on the Microsoft account I did not have. Backup were corrupted, some data loss occurred…