Why forza is still one big bug?

Forza crash 2 sec after loading screen pops up.

The DCOM server can not be started: Microsoft.SunriseBaseGame_1.239.620.2_x64__8wekyb3d8bbwe!SunriseReleaseFinal as inaccessible/inaccessible. Error:
5
The error occurred while running the command:
“C:\Program Files\WindowsApps\Microsoft.SunriseBaseGame_1.239.620.2_x64__8wekyb3d8bbwe\ForzaHorizon4.exe” -ServerName:SunriseReleaseFinal.AppXtkd2atfxzeqx8366ah1yws2z78mgh5d8.mca

as you said, the error come from Dcom server, not FH4

Yeah, but this bug happened to me and my two friends. Its random, and only forza stopped working.

Maybe its your settings

It runs fine on my PC and it barely meet minimum requirements

Maybe post here
https://support.forzamotorsport.net/

Please submit a ticket and make sure you include the error code within the ticket.