Why does my computer randomly reboot without warning?

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Hardware-wise I have to go with the over heating option as a first try after all the software stuff checks out. My comp was doing this to me recently and once I gave her a good cleaning, things worked better. The fans checked out ok, but if you have a ton of dust in the machine, they simply may not be able to keep up. Clean out your machines once in a while. Its the often the difference between the cost of a can of compressed air and the cost of a new processor. If that fan dies and your processorover heats....bad news....

Aside from checking the computer's power supply, you may also want to check the power supply's power supply, your home wiring.

We're conditioned to believe that we'll get a consistent voltage from our home wiring, but it's not as consistent as we think and can spike and dip. That's why major datacenters (the ones that host big racks of servers) and hardcore audiophiles and videophiles use power line conditioning to iron out those peaks, valleys, and frequency distortions into a smooth, clean, flow of power. See http://en.wikipedia.org/wiki/Power_line_conditioner

Consumer models run from $40 - $500 depending on how much you want to plug into them and how hardcore you want to get about the voltage and frequency regulation.

this is what happening to me now
can any one tell me, why when you put a cd in cd rom drive, or for that matter my other drive which is a dvd cd rom drive
it re boot my comter
it did it twice this morning when i try to use a norton systemwork cd, to use one of ther tools that on the cd

i know the cd good as i use it any time

i begin to wonder it this is not part of my bigger problem window reboot on me with out warning, ot when i put a USB hub in plug, it reboot to, and my main beef is when i start y up windoe have to try a couple time before it will load, head a lot of click

i wondering if it not my power supply

Well, I must say that it seems quite strange to me that nobody has mentioned yet the most obvious thing to do in this particular case, i.e. nobody mentioned that the computer's restarts might just be common BSODs (well, Leo did mention a BSOD, but ...), which in turn can be caused by anything really (i.e. the BSODs themselves), and that the first thing you should do is the following:

-- go to "Control Panel", open the "System" applet, and navigate to the "Advanced" tab. Then under the "Startup and Recovery" section click "Settings" button, and finally in the window that opens-up check you current setting (it's a check-box) for "Automatically restart" under the "System failure" section.

/IMPORTANT: If the respective check-box is CHECKED, then you need to UN-CHECK it. This way you will be sure on the next occurance that the reason for these restarts is actually a BSOD and not something else, for instance a too high temperature etc. However, there is also a slight chance that you'll at least get some clue on what's causing it (of course, if it's indeed the BSOD) by the "stop error-code" displayed on the BSOD's blue-screen (under "Technical Information"), and if you are lucky enough, you may even get a file-name of the driver that's causing it.

________

best regards,
Ivan Tadej, Slovenija, EU
http://www.tadej-ivan.be/

i just touch the computer and it reboot itself...any help?

call a computer guy to check it it could got lots of virus and it wont start up so your best chance its to get it repair rofl im in school 10th grade helping you.

My computer reboots everytime I put a disk in the cd rom,as to play a game. Somtimes it runs for an hour or maybe just 5min. It's always different. I have read the page on rebooting and followed any advice given,hope you can help me.Kathleen

my computer resets when my cd-rom tries to read any type of disk

my computer restart recently,i cant log on,i have antivirus,i hope you can help me

I have had the same problem. It started after some other problems developed. Their could be a missing or corrupt file.

Try truning Windows Update off and see if the problem goes away.

Anti Virus was downloading an update, then started an install. Windows Update was also downloading an update, then started an install while the other install was still running.

I started getting Anti Virus error messages, contacted the vendor, and they had ne re-download and install the update.

Then the Windows Update icon would appear in the SYSTRAY, and disapear after a minute. No updates were installed. I went to the Windows Update site, and there were updates waiting. I downloaded and installed them, then Windows Update would start an install and install the updates again.

Microsoft support had me re-install SP2 without cleanup, then my computer would restart without warning every time there was an update.

For the past 9 months Microsoft has had me do over 100 emails of commands, re-installs, and recoveries. Windows Update is in manual mode and I have to check for updates. Even when I do a manual install, the computer restarts.

I have checked everything on this site, and did not find anything that has'nt already been tried.

The Microsoft support people keep saying I can't help you, contact support. I get a new person each time, and they wnat to start all over with all of the things that have already been tried.

THEY WILL NOT GO OUTSIDE SUPPORT FOR HELP!
They appear to be more worried that if they have to ask for help, it would not look good on their record.

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