My first file explorer was Xtree Gold. It was great. I also had Norton Utilities back in the good old days (late 80s). Those were great apps.
My
personal computer security suite is Bitdefender Total Security with Malwarebytes Premium. I have Windows Defender do periodic scans, but its real-time protection is disabled.
That combination was chosen because of my experience with malware identification and removal. I want
maximum protection.
I am not criticizing Windows Defender, so please don't flame me.

It is a very capable product, but it is not Number 1 in credible AV ranking comparisons.
Security is all about layers, practicing safe "hex," and employing a
robust backup strategy, the importance of which
cannot be overstated!
No one or combination of security suites is 100% bulletproof. Having recent offline system images with bootable rescue media is very important, not just against malware infections but also to protect users against hardware failures or just plain stupidity. I think most of us would admit to having done silly things in the past; at least I have.
As has been often stated, the major security vulnerability is the interface between the chair and keyboard!
These are just my
personal thoughts. Have a great day.
Regards,
Phil