Minecraft crashed and now it won't launch again, says javaw.exe nonexistent

Minecraft Java Edition crashed in the middle of playing, freezing badly enough that I had to restart my PC. When I restarted it and went to relaunch it, the launcher gave me the following error message:

 

Unable to decompress file.

Error details: permission denied

Filename on disk: javaw.exe

Path: C:\Program Files (x86)\Minecraft Launcher\runtime\java-runtime-alpha\windows-x64\java-runtime-alpha\bin\javaw.exe

Exists: Nonexistent

 

Updating launcher and Minecraft itself did not resolve issue. Restart did not resolve issue.  Running launcher as administrator did not resolve issue.