If you see this message when trying to install XP on your computer, it can mean several things.. but the first thing that comes into mind is that you are trying to install XP on a computer that has a SATA hard disk, and XP does not recognize the controller that’s on your motherboard.
If you have not changed anything and you are using the same cdrom as you always have, see this microsoft article for more information, your hard disk may have a problem or virus: http://support.microsoft.com/kb/324103
Below however is a much more common reason for the STOP: 0x0000007B error
You may remember using another XP cdrom disk fine, like one from DELL. If you used one from Dell before and you are using a different one now, the explanation is simple: Dell makes sure that they include the SATA drivers for your motherboard inside the XP cdrom…. while if you buy a new one, it does not have those drivers.
There is a setting usually to make the bios work in ATA compatibility mode, instead of SATA, this differs depending on which bios you have so I cannot give an example that will cover everyone but here is one I found in a forum:
1. On start up (Dell logo), press F2 to enter BIOS
2. Expand the "Drives" section
3. Go to "SATA Operation"
4. Change this from "RAID Auto/AHCI" to "RAID Auto/ATA"
The other way is while xp is starts the setup it says at some point to press the F6 key >
“Press F6 if you need to install a third party SCSI or RAID driver”
and insert the floppy that should have came with your motherboard. However not all motherboards come with a floppy disk, in that case you can create a new floppy disk by following the guide below: http://xphelpandsupport.mvps.org/how_do_i_install_windows_xp_on_a.htm
I realize that most computers now are sold without even having a floppy disk drive, in that case you will need to follow the option below:
[Advanced] You can also create a new cd rom by slipstreaming your sata drivers inside the cdrom. See this guide: http://news.softpedia.com/news/Install-Windows-XP-On-SATA-Without-a-Floppy-F6-47807.shtml
I hope this helps some people out there, please leave a comment.