Can Avast perform a backup on my PC?
First, I’m an Avast user and not an Avast Team member.
That isn’t a function of Avast Antivirus, you can backup your Avast Settings.
Avast Antivirus allows you to back up your Avast customized settings and restore them if necessary, for example, if you reinstall an operating system …
But not your Operating System, There are Programs that you can use or use the Windows
This used to be a function a very long time ago. I can’t recall it and I have been using Avast Antivirus Free for some considerable time.
Discontinued Consumer BackUp: Older legacy tools like avast! BackUp for personal online/offline disaster recovery are long discontinued.
I just use the Windows Backup and save it to an off-line SSD disc/drive. But there is a number of backup programs out there.
best windows System Backup program
You could tag Free into that search if you don’t want a paid version.