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XP home system constant reboot

By amorris ·
Compaq Presario 900 with XP home that will not complete a boot. No matter what selection is made - normal, safe mode, last known good, machine just cycles back to reboot. What is the cause and how can I correct it. It will require some sort of boot disk.

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by BFilmFan In reply to XP home system constant r ...

Boot disks can be had here:

http://www.bootdisk.com/

Once you are booted, run a chkdsk /r on the hard disk.

Then choose to perform a repair. If all else fails then follow the steps here to perform a repair:
http://support.microsoft.com/default.aspx?kbid=315341

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by w2ktechman In reply to XP home system constant r ...

my guess is that it is blue screening, and the OS is set to auto reboot. Anyway, since you cannot get into safe mode, this may be a tough one. A needed driver or service is failing, or HW is dead. You can try the recovery console, but you would need to know what to turn off. Do you have AV start early? you can try turning this off first. If not, you can try reapairing the OS with the original windows cd.
If these do not work, you can try tearing the system apart. Unplug all external devices and try again, if it still wont boot try removing cards and unplug cd/floppy drives. If it does boot, add cards 1 at a time until the problem is found.

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by kokwee_1867 In reply to XP home system constant r ...

Possible you'll need to reFDISK your HDD and reInstall windows.Normally comes to this condition,you'll need to try solution to ensure either is your Windows are encountering auto reboot problem.Hope it helps you ..

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by glyall In reply to XP home system constant r ...

run a boot diagnostics program to check the hard drive. If it passes the hard drive test, remove the hard drive and place it in a good PC as a second drive.
Boot the PC and check the second drive for adware or virus.

Adware and virus are going to get WORSE not better.
I work on a PC that you could not turn it off.
The only way was to unplug it. Adware at work.

GOOD LUCK

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by glyall In reply to

Check the capacitors next the the CPU.
If they are flat on top they are okay.
If they are pushed up they are bad.
Having just one bad capacitor can cause this problems.
Have bad capacitor/s you will have to replace the motherboard

Good Luck

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by eyahss In reply to

or you can replace them if your skills with an iron are very good
i have done this once and while it was successful it would be a whole lot less frustraiting to get a new mobo

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by wlbowers In reply to XP home system constant r ...

Something is crashing.

As your computer is booting press F8. When the menu comes up arrow key down and select Disable reboot on error.

Restart. Now when the computer comes up it will stop and hopefully give you a error box or a blue screen.

Good Luck Lee

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