Windows 10: Remove hard drive with old OS (win7)

Hi

I tried to remove the SSD drive E: with the old OS (win7) so I can use it with my old motherboard/CPU as a backup PC.

But the PC doesn't boot up. I go to BIOS and choose the drive C: with the new OS (win10) but it doesn't boot up. When I connect back the E: boots up fine. Why I need the old drive to boot up?

:)

 

Hard drive/ OS issue

a guy suggested :

• shutdown
• unhooked HDD
• restarted
• yay !!
• reconnected HDD
• restarted
• yay !!

also , try method 3
http://windowsreport.com/drive-windows-installed-locked/

 

new system old hard drive...

I have an old hard drive that has those old ribbon connections to transfer data to the mother board.

I have a new computer that mostly uses those cool little ATA (I think that is what they are called) connections.

The new computer has a Vista OS.

I opened up the case and I was supprised to see on the motherboard a wide ribbon connection and so I connected the old hard drive and a free power connection.

When I turned on the computer, the system started up like usual and did not notice the new hard drive.

I went to the Control Pannel and did an automatic add hard drive call and it did not find the old hard drive.

Any suggestions?

 

Cloning from 1TB to 2TB hard drive

Whats a good free imaging/cloning program? I have a 1TB hard drive with Win7 and I want to seamlessly migrate my stuff to a 2TB hard drive. Any suggestions?