chkdsk on reboot everytime, how to cancel

I did "chkdsk /f/r/x" from a shell, at which point I was told, as expected, that the volume couldn't dismount, so it asked if I wanted to do the chkdsk upon reboot. I said yes.

Upon reboot, the system loads the "WinXP" screen, and then immediately goes into the chkdsk operation. It does NOT give me the usual "To skip disk checking, press any key within 10 seconds..." - it just goes into it immdiately without any option to skip/cancel.

Unfortunately I can't just run through the whole chkdsk operation because the system abruptly powers off about halfway through the chkdsk. Then when I turn it back on, it runs the chkdsk again...

So how do I cancel the chkdsk?
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chkdsk runs every time windows starts/ remove scheduled chkdsk
Is it the abruptly powers off because of the CHKDSK itself or you just lost power/battery?

Press F8 key while booting and choose Safe Mode or Last known good configuration.
Since your PC is shutting off midway through, you have a problem. Is by any chance any powersaving option set within the BIOS that you can turn off? It could be that it is set to turn off after 20 minutes of no user input, and therefore shuts down then.

If that isn't the case, then your check disk has found a serious fault on the disk and is then shutting itself down. If there is any data worth salvaging on that disk, boot with knoppix and try copying your data off to some other PC, Disk or DVD/CD.

If knoppix doesn't help get your data off the drive, you can try connecting it to another PC, then running getdataback (you need to register it to be able to copy the data off).

Then get the Manufacturer's disk utility to test the disk, try to mark bad sectors or lowlevel format it. You could also try using the HD regenerator, it is a very good utility that tries to revive a bad disk without changing any data on it.
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MelvinivitchAuthor Commented:
It abruptly powers off because of some malfunction. It's not that the battery runs out, etc...

When I try to boot into safe mode, it hangs during the boot process. At the point where it "freezes", the hard drive is being continuously accessed, almost as if it's actually running chkdsk but not giving me any display to that effect. I've only left it on for a couple minutes in that state before manually power it off.

This is a Dell Inspiron 700m. It's a tiny laptop. I actually suspect the power-off might be due to overheating, as the machine gets extremely hot and smells of "heat" too. I initially ran the chkdsk because the machine started to occasionally power off abruptly during normal operation, about 2 to 3 times a day, and I wanted to rule out some software-corruption issues. If it is heat-related, it makes some sense that it's powering off about halfway through the chkdsk, as that is a pretty CPU-intensive process, and so will generate a good deal of heat.

Still looking for a way to cancel the chkdsk, though.
Use a can of compressed air to blow the dust out of the vents if you prefer not to open it and clean it properly. Overheating is usually caused by dust blocking the airflow. I'm not referring to the battery when talking about powersaving features. A lot of PC's and particularly notebooks will also shut off when not running on battery, and that setting is first set in the BIOS.
MelvinivitchAuthor Commented:
It's not a powersave feature - the notebook has all such features, BIOS level and OS level, turned off.

There's no appreciable dust in the vents. About 6 months ago, I had the system open and cleaned everything. Even then, about 2 years after the notebook was purchased, there was surprisingly little dust. I typically find much more.

Enough tangents, though.

I'm still looking for a way to cancel the chkdsk.
I think the problem is with the HD or the data inside. Try to plug the HD into another PC, scan for virus/spyware/trojan etc and try again.

Perform an repair installation is a good choice too if u need to solved the problem fast.

If none of above solutions worked, I'm afraid you'll have to fresh install everything again and make sure u've deleted all partition on the HD and start a new one.
"as the machine gets extremely hot and smells of "heat" too", Ummm, that to me just sounds bad.
I know that smell.
It does sound like from what you are saying something is slowly "cooking" inside your laptop.
To be honest this is why I like desktops, cos I can open them and clean them.

Based on the info you have given I'd take it to a Dell certified repair store and get them to open it up and find out why it's running so hot.

For cancelling the chkdsk from your replies I've not seen you tried what LeeTutor first suggested or rindis suggestions or an outcome. Both are very good starts for problems like this.

I think a merger between rindis's option of a bootable CD and LeeTutor's comment on how to remove the dirty flag on a drive might just work to get it up once. This is all depending your machine can stay up long enough to boot off a CD and issue the command.
But if your machine abruptly powers off then chkdsk will continue to try and run even if that works because it knows windows was not shutdown nicely.

MelvinivitchAuthor Commented:
I could see that dust was not a problem. The vents and fan on this machine are particularly visible (when holding a flashlight to the vents). Plus, as I noted, the machine was opened up a few months ago. I should note that I used to repair laptops (and desktops) professionally, so no, it's not likely that I screwed something up while I had the machine open as I have plenty of experience, and take all necessary precautions.

In any event, I've gotten around the present problem. I set up the machine on it's side with a big fan pointing at it and  booted the thing up after letting it cool down for a couple hours. It ran through the whole chkdsk without any trouble, and has been in near-constant use for about 8 hours without a shutdown event. I should note that this is my girlfriend's computer. She's now being particularly careful about allowing proper venting, which is no small task on this machine as Dell (in my opinion rather stupidly) put the intake vent on the bottom of the machine, and a small, easily blockable exhaust vent on the side. I hate extremely tiny computers.

Indeed, my next course of action was going to be to clear the dirty bit via the recovery/bootable CD.

Anyways. I'm going to note here that the "solution" to my question implicitly arrived upon seems to be that such a recurring chkdsk scenerio can only be cancelled by clearing the dirty bit via recovery/bootable CD.
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