Windows 7 How to see what processes are happening on my computer?

[warrrenalen]

I'd like to check up the way my computer works when I get disconnected from my game. Especiually, I need to know what commands are performed when I I play for half an hour and after that I see that there's an error.
I'd like to find out what interrupts my prolonged playing.

 

[Jimbo22]

right click the task bar, select task manager, in the window that pops up, bottom left corner click more details if that is not already open, then select processes to see what is really running on your PC.