I am currently getting two problems which seem to be related.
the 1st issue is that all my USB ports stop working after my laptop is on for awhile which means i have to reboot to get them to work again. Which leads to my second problem, after I try to shutdown/restart my laptop, it hangs on the shutdown screen for about 15-20 min which then leads to a BSOD with a DRIVER
-POWER-STATE-FAILURE message. This problem can occur at any time (when i'm browsing the net, playing games or when i am not using my laptop but it is on.)
OS: Win 7 Home premium 64 bit original install OEM
CPU: Intel Core i7 -740qm 1.73GHz
Graphics: NVidia GeForce GTX 460M
I bought this laptop at the beginning of the year.
-This problem has been going on for a few months
-After this issue occurs, when i turn my laptop back on, windows reinstall drivers
for all devices attached by USB.
- I have tried numerous system restores, reinstalling or updating some drivers.