Microsoft Surface Hub 2 SmCamera - Manual (Page 551)

2. Select Update & Security .
3. Select Recovery , and then, under Reset device , select Get started .
） Important
Ensure that your BitLocker key is available as you will be prompted for it later.
To learn more, see
Save your BitLocker key . When the Hub reboots to the
recovery partition, it will prompt you to enter the BitLocker key. Skipping that
prompt will cause reset to fail.