Recently my Win7x64 Ultimate has been freezing. The screen and mouse freeze and the only thing that can be done is a reset.
I did a driver
update check, and all my drivers
I am running a Intel Core2 6700 @2.66GHz, with a nVidia GeForce 9800 GT graphics card.
I am not seeing anything in the event viewer except an error about DLPortIO.sys file.
I ran Memtest86 for 4 hours with no failures by using a memtest ISO file image and creating a CD to boot memtest.
When I tried another memory program (memtest.exe), which runs while Windows is still running, the PC froze after about an hour.
Any ideas on this would be appreciated.