I try to install Ubuntu, but when it come to partionning, it stop at 0%

What is the other OS that you are installing? Does it stay perpetually at 0%?

Please give more details on what you are doing.

What is currently on the computer?
How are the partitions setup? (eg have you already made some partitions, is the disk completely partitioned, etc.?)
Do you have a Ubuntu live CD--if so, boot up from that, open a terminal and enter "sudo fdisk -l". Post the results here.

I have windows 7 32bit ultimate, which was installed 4 month ago. I only have 1 partition, 1 hard drive. It has 600 gb free space on 1000.

When you say that it has 600GB free space, we need to know if that means space with no partitions. You can get this information from the Windows disk manager, or---as I suggested---by booting from a Linux Live CD.

The typical Windows setup uses the entire drive in one big partition. If that is what you have, then you will first need to resize that partition to make room for one or more Linux partitions. I don't know if the Ubuntu installer allows you to re-size existing partitions. If not, you can use any number of Windows tools, or the GParted stand-alone bootable CD.