@Myotis_cuniculus @futurebird
Antivirus software is basically a rootkit. If the computer is running Windon't 10 or 11, Microsoft Defender is generally good enough.
If your mom is up for learning something new and if there are versions of the programs she uses available for it, then "switch to Linux" is a genuinely viable option these days, especially in light of Microsoft's craptacular 2024.
@drakenblackknight @Myotis_cuniculus @futurebird Microsoft defender OS indeed enough for most users but do this in conjunction with a small number of carefully chosen browser extensions that block ads and most ways malware would come through a browser.