Dual Boot One HDD?

Hello DoritoFrito.

Yes; choose custom and point it to the empty partition that does not have Vista on it.
















Later Ted

Hello again.

Use this tutorial to create a partition before you start the install.

Disk Management - Shrink Partition - Vista Forums














Later Ted

Excuse me if I am talking down to you, but from the nature of the question, I assume you are an "average" user? I get the impression that you have Vista installed on a single partition hard disk?
You must first create anpther partition for Windows 7. You can do this through the Administrative tools - Computer management facility. A 50/50 split is fine at this stage. You will probably have to "shrink" your Vista partition.

Yep, shrink the Vista volume and create a new partition. next time you select custom at the installation screen, select the newly created partition. Give it about 40GB if you can for some wiggle room.

Just like to add that the Advanced options in the installer gives access to basic disk management functions, if you have free space on the drive the partition may be created, formatted etc. from here

Saying that I always find the a little preparation work before you start a dual boot install is the best, and safest way.

And even with the reliability of recent installers, and disk management software the first thing is ....

Backup everything that you cannot afford to lose from existing systems before you even think about dual boot

+1 on the preparation. Once upon a time I used to go in all guns blazing and be damned to the consequences. Now I prepare a little and go in with just the one gun...