Put Ubuntu HD from dual boot pc to new pc can't dual boot

[1701funi]

I was dual booting windows 7 and Ubuntu with two HD's until Motherboard died. Put HD with Ubuntu in new computer as second drive. If I changed the BIOS so Ubuntu HD was first I got the menu to pick which OS to boot. Ubuntu booted ok but when I tried windows it would come up. Do I have to reinstall Ubuntu or is there a repair I can do.

Thanks.
Don

[fantab]

Is Ubuntu booting on the new machine?
I don't think Windows will boot on a new hardware. You may have to re-install Windows.

[Mark Phelps]

Windows will generally NOT boot when you transfer a drive to a PC with different hardware. There are tools out there that will allow you to "migrate" an existing Windows setup to a different PC, but they require a CD or USB stick of the drivers needed for the new PC and they generally cost money.

[1701funi]

Ubuntu will boot from the menu if I make it the first drive in the BIOS. Window 7 is on the primary drive and is a new install. I did it before putting the hard drive with Ubuntu, in. When I created the dual boot on the old pc windows was already installed. I put in a new HD and installed Ubuntu. Do I have to re install Ubuntu?

[oldfred]

Set BIOS to boot Ubuntu as default and boot Ubuntu.

The current Windows entry is looking for your old install. Just run this and it should update to boot your new install.

sudo update-grub

[sdowney717]

MS windows protection kicks in to prevent booting MS windows on new hardware.
OS shutdown is to protect MS profits, otherwise cloned drives would boot all over for free.