Q:

Free Software for Partition Manager

Free Software for the Partition Manager on Windows XP/vista?  

A:

Try GParted Live.  You can create a Boot CD and use that to work with partitions.

A:

Windows Vista now has a built in partition manager. You can access it like this:

Go to Control Panel / Administrative Tools / Computer Management. 
Then go down to Storage / Disk Management. That brings up your drives. 
Now you can just select a partition within a drive.
Right click it and you'll have options to Shrink, Extend or Delete it. The former two show a popup detailing what size you'd like. 

More info here.

A:

Easeus Partition Master is an excellent tool, and the Home version is free!  It has a bunch of useful features.  I've been using it for a little while, and still cannot believe they give it away for free.  You should definitely try it out.

