how to install win xp+7 on same hdd?

[NYbadboy911]

i need help guys i just got the nvidia 3d kit and 3d screen since i cant use win xp i would need to upgrade to vista or win7 my question is how do i install win7 and still have win xp on the same hdd?

 

[KSoD]

How to dual boot Windows XP and Windows 7 (XP installed first)

I am sure that will be of great use.

 

[Apokalipse]

1. shrink the XP partition
2. make a new partition in the now empty space
3. install 7 on the new partition