Potential solution to repeated crashes on launch on Windows

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If you get repeated crashes on launch on Windows, trying uninstalling python in program files.

UE4 tries to load a python script module using python 3.7.7 (this is UE4 4.27.2) but I had installed python 3.8 on my system.

With the repeated crashes, I tried launching UE4 in WinDbg and I see this python error:

Fatal Python error: init_sys_streams: can't initialize sys standard streams

Googling it led me to this SO post (Fatal Python error: init_sys_streams: can't initialize sys standard streams AttributeError: module 'io' has no attribute 'OpenWrapper' - Stack Overflow) which basically says a version of installed Python added onto your PATH conflicts with another Python instance.

I uninstalled my python3.8 and UE4 gets past 75% loading now and I can use it.