Pc still a pile of lag that can't run anything ? i might as well jump on-board.
Btw you can't see anything with the default windows task manager in regards to what is doing what.
plz download this and use this for look for problems..
A screen shot of all processes running would be nice too, not that i cant see em in speccy but i like looking at it this way too, remember to expanded all processes so i can see the full list.
Ps im a hardware guy my self, you do the rounds on a hardware level with stress testing and benchmarking or is that not even possible cus the pc is so slow.