How do I reinstall Windows 7 for dual boot?

[xxpatrioticxx]

I recently put Windows 10 on my desktop via Windows Update, but I was never prompted to use it on another partition or anything like that. I have my Windows 7 disk, so is there a way to reinstall Windows 7 so it's dual boot?

Thanks!

 

[boltman2013]

Yes, just create a blank partition in 10 and then install 7 into that partition with your install disk. It works regardless of OS the only difference might be the boot menu you get.