I recently encountred an issue that no matter what I do (Play games, Browse the internet), My computer just gets stuck for a few seconds or lags. Now I was very frustated so I just foramt it. Now I still have this problem when ever I play games, or just browse the internet (Or anything I do), It's very laggy and gets stuck. Now this is the list of what I did: - Virus scan (Malways anti-bytes, Panda Cloud antivirus). - Clean dust in the computer itself. - Delete unnessacry processes (I just formated it so... nothing but still). What else can I do? Upgrade the computer? This is my computer's parts, By the way. - E5400 Processor. - 2GB Ram DDR2 667 (I wanna upgrade to DDR 800, 3 or 4GB). - Biostar G41 chipset. - HDD 70Gb (Yes, Wanna upgrade). Thank you for the help, I'm clueless!