PC Continuously Reboots

Do you have a question? Post it now! No Registration Necessary.  Now with pictures!

Threaded View
When I boot up my PC, it reaches the part where it shows the Windows
XP screen, and then it reboots again by itself! Basically, the PC is
stuck in an infinite loop of reboots!!

I am not much of an expert with PCs, but I have the feeling that this
has something to do with some hardware component that maybe is
failing.  I am 100% sure that I do not have a computer virus.

Any idea what it could be?


Re: PC Continuously Reboots

On Mon, 2 Mar 2009 07:50:53 -0800 (PST), tiziano1@yahoo.com

Quoted text here. Click to load it

Check that all fans are working, including one on the video
card if present.

Does it always reboot at exactly the same point?  If so,
probably a software (operating system) problem, you might
try booting to safe mode to see if it finishes when drivers
and other things aren't being loaded.

If all else fails, backup any important data and do a repair
install of XP.  How can you be 100% sure you don't have a
virus if the system won't even finish booting?  You might
also try booting to another OS, like a Ubuntu LiveCD to see
if it finishes and stays stable.

It might help to also list all major components in the
system including PSU make/model/wattage.

Re: PC Continuously Reboots

On Mon, 02 Mar 2009 07:50:53 -0800, tiziano1 wrote:

Quoted text here. Click to load it

  Only when you boot Windows, or does it happen whatever you boot
(e.g. LiveCD)?

I had a similar problem once. Turned out I had hit the 'on' button
too hard and it had jammed in!
    Linux Mandriva (i686) 2009.0 32-bit
           KDE 3.5.10          Virtualbox 2.1.4
(Replace "nomail.afraid" by "bcs" to reply by email)

Re: PC Continuously Reboots

On Mar 2, 9:50=A0am, tizia...@yahoo.com wrote:
Quoted text here. Click to load it

Starting the computer in Safe Mode did not fix the problem, including
the option to load the Last Known Good Configuration.

I have, however, been able to capture the following error message:

     Stop:  C0000221 {Bad Image Checksum}
     The image advapi32.dll is possibly corrupt.  The header
     checksum does not match the corrupted checksum.

How do I re-install this .dll file?  I ran a search for "advapi32.dll"
and found several sites that offer this file as a download, but with a
PC that cannot boot up I don't know how to do it...


Re: PC Continuously Reboots

tiziano1@yahoo.com wrote:
Quoted text here. Click to load it

If you have a WinXP installation CD you can boot to console mode and copy the
file from the CD. You might have to extract it from a .cab file.
You can boot with a Linux live CD and fix it from there.

                   Mike Walsh

Re: PC Continuously Reboots

On Tue, 3 Mar 2009 06:13:04 -0800 (PST), tiziano1@yahoo.com

Quoted text here. Click to load it

Did the system have a windows update or application
installed or uninstalled after the last time it successfully
booted?  If not, it seems unliked a file would self-corrupt
without another problem like a hardware instability during
defrag of the drive, or possibly the drive itself is

Run memtest86+ for a few hours to check memory stability,
and the hard drive manufacturer's diagnostics to check the

When downloading a copy of that file, you might want to get
one that's the same version as yours was.  IF you only have
that one file corrupted, you may be able to determine the
version it was by looking at other files on the system.

For example, advapi32.dll is in the /windows/system32
folder.  On a system here it is dated April 24th, 2008, and
is version 5.1.2600.5512.  Obviously this file is newer than
the XP OS it is found on, so at some point it was updated.

You might have the same or a different version of the file.
Looking in the same directory (system32), I found another
file with the same date (adsnw.dll) and version # as
advapi32.dll.  The point is you can look at your copy of
that adsnw.dll file as a suggestion of what version you need
of advapi32.dll, IF the only problem is that one file being
corrupt and needing copied back to the drive.

As a prior poster mentioned, getting the file back can be
accomplished by booting any OS that can read and write to
the filesystem upon which windows is installed, normally
NTFS or possibly FAT32.  Many OS can now do this, including
the one loaded from the Windows CD when you boot to a
console, or a Windows PE or Bart PE OS on removable media,
or modern Linux LiveCD, or putting the drive in another
system running Windows 2K or later version.

In case the drive is failing, or the hardware instable, this
last option is what I would do.  I'd first put the drive in
another Windows system (or in an external USB/SATA/etc
enclosure connected to another system) and copy off any
valuable data, then scan the drive for errors and the
partition for malware/virus/etc., then scan drive again with
the manufacturer's diagnostics, then if if checks out ok put
the replacement file on it, then try booting in the original

If that doesn't work and you've made it this far you may
need reinstall the OS but it still doesn't address the cause
of the problem... so hopefully some problem will turn up
doing the above procedure.

Site Timeline