Thanks for your input.
I have many Windows devices on the same LAN segment at home. They all sign in using my MS acct.
Except for my main gaming PC. they can all download MSFS2020.
Main PC will always get these errors, varies day to day.
0x803FB107
0x80070141
0x80073D12
0x80073D02
0x80073CF9
0x87E00017
0x80131500
0x80070422
I have just done the latest WIN10 updates, and a WSreset, still not downloading.
No help from Zendesk/MS.
What a mess.