|Yes. The CPU at 100% indicates something running in the background and it crashing shows this to be extreme. Malwarebytes should help if like I suspect you have malware that is trying to ruin your computing experience and reducing background programs always makes Windows more responsive. Every computer company and software vendor believes that you need to have their program already running so it can launch instantaneously when you need it, but if everyone is always running then everyone suffers with a slower system, especially you.|
If you tame the CPU usage and occasionally get crashes, then you also may have a bad memory segment so you can test this with Memtest if needed.
I suggest NOW that Microsoft have one of those pop up security boxes when any program wants to add itself to your start up and asks YOUR permission to do so. How about a vote everyone?
You have to be a little bit crazy to keep you from going insane.