Windows 10 Recovery Key. On a printout you saved. I had to find my windows 10 recovery key to continue.
Your recovery key may be on a printout that was saved when bitlocker was activated. In the search box next to the start button search for create a recovery drive and then select it. Press windows logo key l to get to the sign in screen and then restart your pc by pressing the shift key while you select the power button restart in the lower right corner of the screen.
Check your microsoft account purchases.
To create a recovery drive in windows 10. In the search box next to the start button search for create a recovery drive and then select it. I could boot into startup repair and select reset this pc but it wanted me to supply a recovery key. I had to find my windows 10 recovery key to continue.