cwrivers

I ran, SAS, Malwarebytes, Adwcleaner, roguekiller, and MRT, but all have come out clean other than cookies

Installs arent an issue, Nothing has been installed as far as i can tell.

Thats typically what ill do, and after using what i know works and even a few that i havent tried before, shes still having issues. Shes sending the computer to me so that i can reformat/reinstall. I hate having to do that but at this point i dont know any other options. I think im going to create an image of her computer at "fresh install" so future issues will be easier to deal with, but im looking for a fantasy super solution on how to avoid this in the future.

I dont know where else to turn, hopefully you guys have some insight. Some Backstory ---- My elderly grandmother is more computer savy than most elderly people i know, however, it seems that i cant stop her from getting viruses like crazy! We are 1500 miles apart and i can usually fix any issues that she has remotely, but this last time has stumped me. She regularly downloads "cutting" files for craft cutters like silhouette and cricut, and i believe that she may be clicking on the ad "download" buttons on accident and flooding her computer with viruses and ransomware, Either that or its email attachments. Every six months or so i have to completely disinfect her computer even though its running Kaspersky, SAS, and Malwarebytes. Most of the time its an easy cleanup but this time, its bad, Consistent freezing when not in safe mode and every tool that i have thrown at it wont find anything. Im fairly confident its not hardware related, the computer was built about 15 months ago from scratch. I have tried everything that i can think of to clean her PC but have failed, and she is currently going to ship her computer to me because its cheaper to ship than to take to a repair shop to have them clean it. My question is: After i get her computer cleaned up and back to working order, is there anything that i can do besides Kaspersky, SAS, and Malwarebytes to keep her computer safe? I built a computer for my kids to use (6,9 Y.O.) and did some tweaking in the policy editor to block basically everything that could harm the system, is there something similar that i could do with her computer, but still have the freedoms that she has to download all the cr@p that she does? Sorry if this is jumbled, kinda frustrated at this point..... Thanks in advance guys!