Latest Windows 10 update (March 2021) broke Bluetooth on mid-2014 MacBook Pro Retina
Windows has the ability to create restore points. You can return Windows to a pre-update state by using System Restore. Restore points are often created automatically by Windows before the install of a major update. Restore points can also be created manually by the user. Below is a image of the System Restore tab of System Properties.

Selecting the System Restore button opens the window shown below.

By selecting the Choose a different restore point radio button followed by the Next button, a list of restore points can be displayed, as shown below.

You may want to create a restore point before making a major update to Windows. A restore point can be deleted later to save space.