Lenovo ThinkPad x61 Dual Boot Installation Option Missing

Installing Zorin OS
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Possible causes:

  • Windows was hibernated rather then shut down.
  • Windows was not properly shut down. (Perhaps there was a power failure, or it bluescreened last time it ran?)
  • The Windows partition is damaged, and should be fixed with chkdsk in Windows.
  • The Windows partition is too full to be shrunk.
  • The Windows partition cannot be shrunk because the files in it are too badly fragmented, preventing them from being constrained to exist only within the new boundaries.
  • The Windows partition cannot be shrunk because of immovable files near the boundary.
  • The drive has been formatted as a "Windows Dynamic Disk" - Ubuntu can not be installed on a Dynamic Disk, you will need to convert the drive to a Basic Disk.
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