i used to run avast but it would slow down everything and be rarely needed, most times i got viruses was when downloading pirated software anyways and i've greatly reduced my need for that, the main thing that made me uninstall avast was that when i actually needed it it didnt work, it required a full windows 10 reinstall to get rid of 6+ viruses i got when i downloaded pirated nero, i let windows defender enabled now, but it's only so it doesnt give me notifications all the time saying i dont have it enabled, most of the times it detects kms pico as a virus and i have to say it is not. as for my phone, its a waste of space and system resources, of course not