Solved Windows failed to start

[Sxcd1]

I am reinstalling my Win 7 Pro computer as I get freezes and occ BSOD in my system that is ~3 yrs old. My system is on a 1 GB drive and the new system is being built on an identical drive on a SATA slide in connector on the top of my Coolmaster case. My plan is the build the new system by disconnecting the old drive and installing Win 7 on the new drive on the top of the computer case. If I need to I can disconnect it and reconnect the old drive. It seem that when I go back and forth between the 2 drives I get the following error messages and have to do a windows 7 repair to boot into either drive after a switch. The SATA connectors are different for each drive and they could be connected at the same time but I haven't done that to avoid confusion (or problems).

Can someone explain why I'm getting the error?

 

[gregrocker]

Can you plug in both drives, set preferred OS HD to boot first in BIOS setup, trigger other OS HD when needed by using the one-time BIOS Boot Menu key? This avoids having different SATA controllers confuse Win7.

 

[Sxcd1]

Gregrocker, Thanks works great.