Hello Gandalf_The_Grey, thank you for your reply.
I have made some changes as per your advice.
- Set UAC to always notify
- Remove Avira extensions
I am a bit paranoid, so I feel less safe when using only Eset as my protection. That is why I use Kaspersky Anti Ransomware and Malwarebytes Browser Guard. Regarding full image backup, if something happens, I like to format the Windows instead of restoring from the backup. For my important file, I do not store them on the computer.