task manager performance

My laptop was alright when I bought it brand new, but after update for some reason there is a spike in RAM when I open the task manager. The two tasks called "Desktop window manager" and "Windows Explorer" are eating up to 30% of my RAM. Is there any solution to this specific problem?

I have a Dell G3 gaming laptop that I purchased from Best Buy as a gift, and it seems as though there are a lot of processes running in my Task Manager, and I do not know which ones are safe to disable, or if I should uninstall programs that are running. Currently, I have 86 background processes...

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...

When i move my mouse my cpu usage in task manager is rising from 12% to somewhere close to 60 %, and when i type something anywhere it goes to 100%. Can someone tell me a solution to this? I also scanned my computer for viruses and there is no virus. I updated my drivers as well and restarted...

I'm not sure what version of Windows 10 I will need for my pc build 32 or 64?... help me please! Also plan on putting in 2 more memory sticks if I can. https://pcpartpicker.com/list/hwBmCb