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I deleted the partition manually.

  1. diskpart---> set active partition to c:;
  2. bcdboot c:\windows /s c:
  3. on boot(by start from dvdrom or Udisk), diskpart----> delete partition override

    But in my experiences, the 3rd step must be executed on boot. If the system is already startup, "delete partition override" will fail with the cause "can't delete system partition".

    Then my problem maybe has becomed: is there a way to manually delete the partition when the user is logged in win7, otherwise can the VDS api solve the problem?

    Thanks in advance, Siguang Zhang

  • Out of curiosity, why would you delete the Windows boot partition? – egur Jan 16 '14 at 09:13
  • To clarify, at the point when you're trying to delete the original system partition, you've already changed things so that you're booting from the main partition, and you've rebooted after those changes? That is, you're now booted entirely from the main partition? – Harry Johnston Jan 16 '14 at 21:17
  • Yes, after I have completed the former 2 steps, I reboot my computer, but I still can not delete the partition because diskpart(or diskmgmt.msc) say "system partition can't be deleted". – Siguang Zhang Jan 18 '14 at 01:15
  • egur, the system reserved partition prevented dual boot. – Siguang Zhang Jan 18 '14 at 01:26

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