task manager glitch

This is a problem that has constantly poping up since i got my new computer, thing is out of nowhere my pc decides to give up, videos stop dead on their tracks, i cant write anything, programs dont load, on the task manager all the processes appear to be at 0%, my only option is to restart, but...

hello, my cpu is showing a constant 79% when idle. It used to idle around 15 and below. Any help?

Whenever I open up my task manager especially when my laptop is hanging due to some unresponsive apps, it seems that my task manager will also become unresponsive. I remember back in those days when I was using my old laptop, task manager had always been helpful when it comes to lagging issue...