high ram usage when idle

So, my computer recently got a virus attack and i factory reset my windows 10 because i'm afraid it'll pop out again. but after the reset is done, i realize that it consumes 6% more RAM during idle. before the factory reset, it's always at 14 - 17 (around 1.5gigs), now it's 22 - 29 (around 2...

Hello there tom's HARDWARE I've been downloading games from torrent sites and maybe my PC got infected cause of some viruses and two weeks ago I found out my RAM is being used more than 40% being idle and no background task is running but the process named "anitmalware service executable" was...

When not running any programs, my memory is at 65+%. I also have over 80 background processes at all times, depending on what I have open. I will put a snip of the memory usage. Picture on Imgur