those on.4482 firewall error problem The ucrtbase.dll is part of Visual C++ and Visual Studio. I tried simply uninstalling and reinstalling Visual C++ to no avail. so I decided to look at the service webthreatdefusersvc in services.msc. I tried simply stopping it and starting it. It did not produce the error. I then tried to disable it but it gave me a "parameter is incorrect" error. So I decided to search the registry for it. I then changed the value of "Start" from 2 (enabled) to 4 (disabled). I then restarted and the error did not come back in reliability monitor. It's still happening in event viewer though.
Microsoft managed to break the Windows Firewall in all three insider channels that is impressive. It is confirmed to be busted in RP, Dev and I just confirmed Beta also. I would stay the hell away from any of these builds if you value your security at all as running a PC in 2025 with no firewall is a recipe for disaster.