[OtherOS] Resizing (shrinking) ext3 partition

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http://ubuntuforums.org – Hi all, I have a laptop with 300GB hard disk space.It contains windows 7 & boss linux in three partitions.The partition containing boss linux has 94GB itself.I can't read and write that partition in windows 7.So,i want to shrink that partition to 10GB and convert the remaining 80GB to NTFS.Is there any way to do this? Thank you. (Hardware)