Hello, friends
I have installed windows 7 and i want to switch back to windows XP.But I am not able to install it.All the time it gives a blue screen and.This is being happening after the installation of windows 7.
I formatted the partition once even then the same problem.
Problem: Unable to Install Xp
Error:
Before formating partition: Blue screen & Stop: c0000221/ unkown Hard error
\systemroot\system32\ntdll.dll
After formating partition: Boot MGR missing press ctrl+alt+Del to restart
System Confrigation:
OS: Window 7 Home basic(EM) currently working fine.
Motherboard: DG41TY
Processor: Intel Core2Quad
Ram: 4GB
Hard disk:
1. SATA-HITACHI-HDT721-320.0gb
2. SATA-SAMSUNG-HD161G-160.0gb
Things I have already tried:
1. Foramte the partition having window
2. UPDATED BIOS from intel site.
3. Drive Confrigation at Bios set up: ATA/IDE [Native]
4. Boot drive priorty: [CD/DVD-ROM drive]
5. Unable to use NLITE Software
Status: it copy window file. Nlite not colaborating bios update to burn new bootable disc.
6. Unable to find drivers for SATAShort answer. You can not go back. Windows 7 and Visa kill XP drives.

Long answer. Boot up you PC with one of the Linux LIVE CDs. Find the GPaer utility and completely wipe the partitions off the disk. Mark the MSDOS flag on. Reformat the disk as NTFS mark it active partition.

After that, reboot the XP install CD and install.

EDIT: Here is information from MS about this. Hot Fix available.
http://support.microsoft.com/kb/931760
You cannot install Windows XP successfully after you use Windows Vista or Windows PE 2.0 to create partitions on a hard disk

Boot to your XP CD and when given the option, delete all partitions then create own or more new ones and format. You should be able to proceed from there.Quote from: Geek-9pm on January 14, 2011, 09:49:13 PM

You cannot install Windows XP successfully after you use Windows Vista or Windows PE 2.0 to create partitions on a hard disk