continuous rebooting

I installed Vista and went through all the updates. Then in the middle of the night, about every two hours, I hear my 'windows theme' music come on. For some reason, my computer keeps rebooting on it's own. Anyone else have that problem or know what is causing it? I'm using the 64bit version of Vista.

Dingy--
I don't know what's causing it but try running a chkdsk /R (case doesn't matter I just wanted to make the switch easy to see. If Vista is on C:\ for example you would type into the run box:
chkdsk C:\ r
with a space between the backslash and the "r" and you'll have the cmd prompt pop up and ask if you want to run it on next boot and you will type "Y">enter. Then close all applications, ect. and restart.
CH
"Dingy" wrote in message

I installed Vista and went through all the updates. Then in the middle of the night, about every two hours, I hear my 'windows theme' music come on. For some reason, my computer keeps rebooting on it's own. Anyone else have that problem or know what is causing it? I'm using the 64bit version of Vista.

thanks Chad, I'll give that a try. BTW, I didn't think to check the Admin event log earlier. This entry was shown before each reboot(there are several suspect entries, but this one is identical)
"The SL UI Notification Service service was successfully sent a start control."
That entry is followed by another one a few minutes later
"The previous system shutdown at 4:04:54 AM on 6/29/2006 was unexpected"
"Chad Harris" wrote:

Dingy--
I don't know what's causing it but try running a chkdsk /R (case doesn't matter I just wanted to make the switch easy to see. If Vista is on C:\ for example you would type into the run box:
chkdsk C:\ r
with a space between the backslash and the "r" and you'll have the cmd prompt pop up and ask if you want to run it on next boot and you will type "Y">enter. Then close all applications, ect. and restart.
CH
"Dingy" wrote in message I installed Vista and went through all the updates. Then in the middle of the night, about every two hours, I hear my 'windows theme' music come on. For some reason, my computer keeps rebooting on it's own. Anyone else have that problem or know what is causing it? I'm using the 64bit version of Vista.

Dingy--
Although not directly related by title, I find doing the simple steps in this article also help. Sometimes what seem to be random restarts are admixed with failure to shut down during the random restarts:
http://www.windowsnetworking.com/articles_tutorials/Troubleshooting-Windows-Shutdown.html
Also go to devmgmt.msc >expand the plus at Universal Bus Serial Controllers>right click each "universal root hub entry">properties>power>take check out of box " "Allow this computer to turn off this device to save power."
CH
"Dingy" wrote in message

thanks Chad, I'll give that a try. BTW, I didn't think to check the Admin event log earlier. This entry was shown before each reboot(there are several suspect entries, but this one is identical)
"The SL UI Notification Service service was successfully sent a start control."
That entry is followed by another one a few minutes later
"The previous system shutdown at 4:04:54 AM on 6/29/2006 was unexpected"
"Chad Harris" wrote:
Dingy--
I don't know what's causing it but try running a chkdsk /R (case doesn't matter I just wanted to make the switch easy to see. If Vista is on C:\ for example you would type into the run box:
chkdsk C:\ r
with a space between the backslash and the "r" and you'll have the cmd prompt pop up and ask if you want to run it on next boot and you will type "Y">enter. Then close all applications, ect. and restart.
CH
"Dingy" wrote in message I installed Vista and went through all the updates. Then in the middle of the night, about every two hours, I hear my 'windows theme' music come on. For some reason, my computer keeps rebooting on it's own. Anyone else have that problem or know what is causing it? I'm using the 64bit version of Vista.