Uninstall your version(s) of Microsoft Visual C++ Redistributable 2015 and reinstall. Try this if the System Error message says Minecraft Dungeons cannot proceed withoutMSVCP140.dll and/or VCRUNTIME140.dll.
Click Close for each and then continue on to the solutions.
If you see this error, try the solutions below to install the missing files:
Some players on Minecraft Dungeons for Windows have received an error message referring to missing files when trying to start the game.