Xp restarting


My computer keeps restarting. XP is installed in it. I tried all the options available by pressing F8 key but no luck. I also used XP cd and repaired but did the same.

please help me if there is any workaround?


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First step:

Get back into the boot menu using F8
Select the option to "Disable Automatic Restart on System Failure"

Now reboot. Instead of a continuous boot-loop, you will get a blue screen with an error message and code.

paste that message and code here so we can continue.
ayha1999Author Commented:
I have even tried that already but still keep restarting.
At what point does it restart? How far does it get?
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ayha1999Author Commented:
it does not even display windows xp logo. immediately after intel desktop board logo (where I press F8) , it restarts.
also... make sure ALL external usb devices are disconnected, except keyboard and mouse. Even disconnect those to test to see if it completes the boot process.
Kyle DaviesRetail Software SpecialistCommented:
If you have more than one memory modules try removing one at a tome to see if that is not causing the problem as well as Hard Drives and VGA cards try boot up with the default C Drive and one memory module and nothing else connected and see what happens then.
ayha1999Author Commented:
Nothng is connected. When the problem first occured, ntldr was missing' error was there, then removed and installed HDD. after that it keeps restart.
What do you mean removed and installed hard drive?
ayha1999Author Commented:
diconnected for a while and put it back.
ok... do you have an xp cd of any kind?
ayha1999Author Commented:
ok... get back to the boot menu using F8

Select to Repair the operating system (You will not actually be doing a repair install)
Select to load the Recovery Console. You will end up at a command prompt.

Once at the command prompt, do the following:

Insert the XP CD

type the following two commands, pressing Enter after each one:

copy d:\i386\ntldr c:\

copy d:\i386\ntdetect.com c:\

This assumes that the cd drive is "D"
If you get a prompt to overwrite the files, select yes.
ayha1999Author Commented:
I will do it tomorrow from the office and get back to you.

It might be worth running chkdsk /f from the CD repair line before the repair install - sounds as though the file system is ill.
To build on what chrisalis said, after (or before) running chkdsk /f, you may want to run an sfc /scannow to replace any system files that might be corrupted.
do a "system restore" of the hive as follows :
An easier way is to boot from a Bart PE CD (or UBCD4Win CD) and use the file manager for manipulating files. Here  the procedure :
1. rename c:\windows\system32\config\SYSTEM to c:\windows\system32\config\SYSTEM.bak
2. Navigate to the System Volume Information folder.
it contains some restore {GUID} folders such as "_restore{87BD3667-3246-476B-923F-F86E30B3E7F8}".
The restore points are in  folders starting with "RPx under this folder.
3. In such a folder, locate a Snapshot subfolder. This is an example of a folder path to the Snapshot folder:  C:\System Volume Information\_restore{D86480E3-73EF-47BC-A0EB-A81BE6EE3ED8}\RP1\Snapshot
4. From the Snapshot folder, copy the following file to the c:\windows\system32\config folder
6. Exit Bart PE, reboot and test

Use a fairly recent restore point from at least a day or two prior to problem occurring .

** you can add the other hives also with this procedure

http://www.nu2.nu/pebuilder/       BARTPE
http://www.ubcd4win.com/            UBCD4WIN

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ayha1999Author Commented:
It worked.

Thanks all for your participation and support.
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Windows XP

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