I own two up to date computers with windows 10, with fairly different hardware, on both of them, windows fills the ram (99-100%) over time, usually after a month of run time.The first uses a hard drive; the second uses a SSD with low capacity + a hard drive.
When the ram is full, my programs are extremely slow and often freeze. When that happens, disk use also reaches 100% most of the time.I've found a temporary way to make my system usable, that is to launch a very ram intensive program multiple times, such as a video game, after leaving the computer running and closing the process, I have more ram available, and the computer is again usable.
Ram use and disk space on the task manager don't add up as you could imagine.This isn't due to malware; this is purely due to windows mismanaging ram.
Windows is using ram I don't want to be used, and I would like to make sure every unused ram is not used without my approval.
Changing the OS, hardware, or shutting down the system often aren't options for me.