I've been having major troubles getting my Vista 64-bit box to start up reliably and I finally decided to ask for some help.
Symptoms:
During startup my Vista 64-bit machine unexpectedly "powers off" and the power button, reset button, and power switch stop working until I unplug the power cable on the back and plug it back in.
Workaround:
If I boot into safe mode first, I can usually reboot back into Windows normally.
Triggers:
This doesn't happen every time, although usually after Windows Update forces me to reboot it will happen. There was a power outage today and it took several reboots and unplugging the computer to get it to boot again afterwards.
Other issues:
Lately when I try to put Vista to sleep, it doesn't always go into low power mode and seems to just leave everything on. Sometimes it never sleeps and goes back to the login screen immediately.
When the system dies, it usually makes this high-pitched whining noise just beforehand that I think may be the CPU - this noise happens on every boot, whether successful or not, but might be a clue about what triggers the power-off.
Question:
Does anyone have any idea what could be causing this, and what might be the solution?
Thanks!
Symptoms:
During startup my Vista 64-bit machine unexpectedly "powers off" and the power button, reset button, and power switch stop working until I unplug the power cable on the back and plug it back in.
Workaround:
If I boot into safe mode first, I can usually reboot back into Windows normally.
Triggers:
This doesn't happen every time, although usually after Windows Update forces me to reboot it will happen. There was a power outage today and it took several reboots and unplugging the computer to get it to boot again afterwards.
Other issues:
Lately when I try to put Vista to sleep, it doesn't always go into low power mode and seems to just leave everything on. Sometimes it never sleeps and goes back to the login screen immediately.
When the system dies, it usually makes this high-pitched whining noise just beforehand that I think may be the CPU - this noise happens on every boot, whether successful or not, but might be a clue about what triggers the power-off.
Question:
Does anyone have any idea what could be causing this, and what might be the solution?
Thanks!