I just downloaded my launcher installer, followed the guide, and got stuck on this:
[3/2/2022 22:32:11] [INFO] Update found!
[3/2/2022 22:32:11] [INFO] Updating…
Progress : [ 0% ]
Hello
Try to run the Launcher as administrator.
If that doesnt fix it then you can try to allow and enable BeamMP in windows firewall and or your antivirus software 
не помогло что мне сделать еще
not sure why you reply to a 4 year old post but maybe this helps? Manually updating the Launcher - BeamMP Docs