Unable to launch FS2020 ---> Store

edit: Saw that HC4Lif3 posted essentially the same solution before (Unable to launch FS2020 ---> Store - #4 by HC4Lif3). Anyways, for documentation purposes:

Fly, can you please check first whether your problem is the same as the one I describe in my post above (Unable to launch FS2020 ---> Store - #12 by QuickNiq)? If so, the following solution may help for you, too:

  1. Stop Gaming Services:
    1. Open the registry editor (Windows Start > regedit.exe) as system admin.
    2. Navigate to Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\GamingServices. Double-click the “Start” REG_DWORD entry and enter 3, then press OK. This puts GamingServices to manual start mode rather than automatic start mode.
    3. Navigate to Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\GamingServicesNet. Double-click the “Start” REG_DWORD entry and enter 3, then press OK. This puts GamingServicesNet to manual start mode rather than automatic start mode.
  2. Restart your computer. After the restart, the system should no longer try to startup Gaming Services (you can verify this in the system events log).
  3. Open the MS Store and finish the downloads of whatever updates were still pending. The downloads should work now. Wait for all updates to be completed.
  4. Launch MSFS. It should now startup and work properly.