How to Dual Boot Win7 and XP

[Terry D]

I disconnected my XP HDD and installed Win7 on a new HDD and set it up to run fine. I reconnected my XP HDD as a second HDD and it was seen as just another drive, which I've now renamed as drive G:. I have now decided I would like to have the ability to boot up from either drive but my BIOS does not give me that option. Any ideas on the best way to do this?
I am also concerned about updates going to the correct drive for whichever system I'm using.

[Earthling]

If you had left your XP drive connected, and installed W7 to the new drive, W7 would have created a dual boot for you. It did with Vista anyway, and Vista and W7 use the same boot configuration.

From where you are now you would need to install a boot manager of some sort, such as Grub4DOS, or install W7 again with XP connected.

[collinsl]

I recommend EasyBCD or a similar program. It adds a boot entry to the windows 7 boot loader, so on the startup of the computer you get a choice of which OS to boot into.

[Digitalocksmith]

I'm running Win7 in dual boot with Vista (Vista installed first and already partitioned).

Straight off the win7 install disc, Beautiful!......gives me the boot option on startup!

With your drive already partitioned and no unallocated space remaining, Win7 wont install that annoying little windows recovery partition either.....for those that dont want it ofcourse!

Cant say I've tried this with XP installed first though Terry.

[Terry D]

Many thanks for the advice guys, much appreciated.