Reduce the system partition

Hello,

I just bought a Dell XPS1330. I want to reduce the partition containing the system of 220 GB to 20 GB, or the maximum amount to remove that I proposed is 103,271 Mb. So I can not withdraw 200 GB, or the "reduction" is gray. I have to move or delete the swap partition "OS" but nothing to do.
What should i do? I want 20 GB for the system and 200 GB for the data.

Thank you all ...

You made this manip with which software?

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Originally Posted by Raiz

You made this manip with which software?

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With Vista. In the disk manager, click / right on the partition, then "reduce".

Try with a utility management partition
Refer this http://forums.techarena.in/operating...ms/1105646.htm

Once created partition (without formatting), then it is normal that Windows does not recognize it, it should then format (by choosing the NTFS format or FAT32, the better to take NTFS for its stability and performance in writing).