KB4535680 update is causing BitLocker problems in Windows 10
Some Windows 10 users who have installed the KB4535680 update from last month are experiencing problems with BitLocker.
The update was released on January 12 to fix issues with Secure Boot DBX, but some users are complaining that the patch is triggering BitLocker recovery. For people using BitLocker on just one computer, this may not be too much of an issue, but for administrators taking care of lots of systems it is rather more problematic.