I'd say 3 and half layers are covered here:
- Firewall: Default
- Backup: various solutions
- Web browser: Adguard
- Realtime & other: Window Defender
My advice:
- Use Configure Defender alongside WD
- Add second opinion scanners like Zemana & Malwarebytes
- Could add Scriptsafe extension to Chrome
- Add Emsisoft Browser Extension to Chrome
- As you're only looking to harden windows, add Syshardener and Configure Defender to help you achieve this
Hope this all helps you, have a good day and thanks for sharing.
~LDogg