I have Windows 7 64bit Professional running on Intel Core 2 Duo, 4GB RAM and nVidia 1GB graphics card. The Task Manager shows only 3GB of RAM, so i am assuming 1GB is used by the graphics card. After i use the system for about 30 mins, all of the memory gets used up and the system is responding very slow. When i check the Task Manager, the CPU usage is low, but the memory is above 95%.
I cannot identify the process which takes up memory. But this started happening after an update installed service pack 1.
Any thoughts on what might be the problem?
