Is the Ubuntu installer capable of resizing/moving existing NTFS partitions?

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http://askubuntu.com – I want to install Ubuntu 12.04 LTS x64 alongside with Windows 7. I already have 3 primary partitions taking the whole disk space. 100 MB system-reserved (primary) 180 GB system (primary) 285 GB data (primary) I want to resize the partitions so they look like this afterwards: 100 MB system-reserved (primary) 100 GB system (primary) 300 GB data (primary) 100 GB ubuntu (logical; contains boot, root, home and swap partitions) Is this possible (and safe) to prepare my hard drive like that during the installation process? I know that you can resize partitions. But the built-in Windows 7 dis (HowTos)