No Internet After BSOD + Windows Firewall & Services Won’t Start

Hello, I'm experiencing critical issues with my Windows system after a sudden BSOD crash. My main issue is that I cannot connect to the internet, even though my LAN connection is detected. Additionally, Windows Defender Firewall and multiple services are not starting, preventing me from troubleshooting effectively.

Issue Summary:

• Lost internet access after BSOD → The LAN connection is detected but stuck on "Identifying..."
• Windows Defender Firewall won’t start → Error when trying to restore/restart settings.
• Windows services related to the firewall won’t start → Base Filtering Engine (BFE) and other dependencies won’t start, possibly due to registry issues.
• Windows Defender Advanced Threat Protection Service won’t start manually.
• sfc /scannow shows no integrity violations.
• netsh advfirewall reset fails with "An error occurred while attempting to contact Windows Defender Firewall..."

Events Leading to the Issue:

1. Playing a Roblox game.
2. BSOD occurred out of nowhere.
3. System rebooted, but no internet (LAN connection detected but doesn’t fully identify the network).
4. Windows Defender Firewall error: "Microsoft Defender Firewall is using settings that may make your device unsafe."
5. • Clicking "Restore settings" does nothing.
   • Manually starting Firewall services results in errors.

Troubleshooting Attempts So Far:

✅Checked BIOS (Gigabyte B560M Gaming HD, BIOS vF10):

• OnBoard LAN Controller is enabled.
• Realtek PCIe GBE Family Controller is present.
• Tried enabling Network Stack but still no internet.

✅ Ran network troubleshooting commands:

• sfc /scannow → No integrity violations.
• netsh winsock reset & netsh int ip reset → No effect.
• netsh advfirewall reset → Fails with an error.

✅ Checked services:

• Windows Defender Firewall service won’t start.
• Base Filtering Engine (BFE) won’t start (Access Denied).
• Manually adding "Everyone" to BFE registry didn’t help.

✅ Took the PC to a technician:

• LAN port hardware is not the issue.
• Technician suggested a full system reformat, but I want to avoid this as I have important files.

What I Need Help With:

• How can I restore my network connection without resetting Windows?
• How do I fix Windows Defender Firewall and dependent services (BFE, WDF) when they won’t start?
• Could this be a corrupt Windows registry issue, and if so, how can I fix it?
• Are there any advanced troubleshooting steps I can try before resorting to a full system reset?

Any help or insights would be greatly appreciated! Thanks in advance. 🙏