Over the past few days I've noticed my PC has been bogging down significantly for unexplained reasons. No hardware changes, no new software, no extra processes rubbing than usual, etc. However, I have noticed that the longer my PC is left running the more memory is used and held onto with a vice-like grip. Killing processes does little to nothing to alleviate the problem. The only thing that does help is restarting the PC. Too bad this is only a temporary solution. I'm wondering if a driver has started to leak memory or something. Admittedly, this is the first time I've ever had something like this happen so I'm not too sure what I should be looking out for. How can I check?