General protection methods you have mentioned, that’s good, these methods always can be enough.
- Enable Windows Defender Ransomware protection
- Backup files and folders to a cloud or an external drive
- Encrypt files and folders
- Keep your PC up-to-date
If you want a higher security level or defense, the following methods are optional. - Enhance Email verification, do not open attachments in emails from unknown senders
- Use strong passwords for Windows accounts if connecting through Remote Desktop or juts disable remote connection.
- Secure your wireless network at your home or business.
- Overwrite deleted files rather than general delete.
- Consciously check and configure app privacy settings
Hope above methods can give you some hints.
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