Re-post: BSOD ERROR MESSAGE 0x0000007B --- after replacing MOBO and CPU

This is the problem:

I had WinXP Home Edition installed and working fine.  Storm came. Could not get PC to show video.  Changed Graphics card. Still nothing. Returned Graphics Card. Changed MOBO and CPU as recommended by local PC shop.  
Rebooted PC. Recvd BSOD - Stop Error Message: 0x000007B - reboot keeps cycling.


" A problem has been detected and windows has been shut down to prevent damage to your computer.

If this is the first tiem you've seen this Stop error screen, restart your computer.  
If this screen appears again, follow these steps:

Check for viruses on your computer.  Remove any newly installed hard drives or hard drive controllers. Check your hard drive to make sure it is properly configured and terminated.  Run CHKDSK/F to check for hard drive corruption and then restart your computer.

*** STOP:  0x0000007B  (0xF7A0A524, 0xC0000034, 0x00000000, 0x00000000)

Ran Norton and AVG - no virus
Ran CHKDSK - PC health is good

Downloaded and ran PCbeginner
identified problem with BOOTSECT.DOS
--- received the following error message pinpointing the problem:  

C:\  I/O error accessing boot sector file multi(0)disk(0)fdisk(0)\BOOTSEC.DOS

could not find WinXP Home Ed disk so used WinXP Pro disk and installed paralled OS
able to install WinXP Pro and work with C:\    
All information is present, problem appears to be bad boot record
booted WinXP Home Ed to C:\WINDOWS>     tried FIXBOOT, then rebooted  but got  same BSOD
booted WinXP Home Ed to C:\WINDOWS>     tried FIXMBR, successful, then rebooted but got same BSOD
went out and bought WinXP Home Ed (upg) and tried R in the Recovery console
rebooted but got same BSOD
frustrated and dejected

I am presently working with the Windows XP Professional partition, but I need to get the Windows XP Home Edition partition working again.


Who is Participating?
Irwin SantosComputer Integration SpecialistCommented:
the sector in which you have the XP home files is corrupt.. the I/O error is serious and it would be prudent to replace the drive immediately.

invest in another Hardrive and install XP pro.  Since the original drive is somewhat working.. install as a slave to the primary or master on the secondary.  Copy as many appropriate files as you require.
If this mainboard you replaced is a different one from the original, this is expected behaviour. Your drivers and probably chipset are completly different. What you'd have to do in such a case is first to boot into safemode and then go into device manager and uninstall every device in there (also make sure you show hidden devices). Then when rebooting into standard mode the devices should get reinstalled. You will probably need your original XP CD (except if the source is present on the HD) and the motherboard drivers.
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