Quote: Originally Posted by gregrocker
Then unplug XP, boot the Windows 7 DVD, select Repair on second screen, click through to Recovery tools list to run Startup Repair up to 3 separate times with reboots to write the MBR to Windows 7.
This would have solved it from the start.
You needed to either repair Windows 7 (repeatedly to write the mBR) or reinstall it with the XP drive unplugged
. Otherwise it finds the XP MBR to update during Windows 7 install.
Unplug the XP HD and run Startup Repair up to 3 separate times with reboots as given above. You may need to mark Windows 7 active first using Partition Wizard
or Diskpart commands.