I am a newbie, just trying to explore ubuntu. I have installed Ubuntu 16.04 on my dell studio 1450 with legacy bios along side windows 10 (auto upgraded from windows 7 couple of year back). Facing issue while booting windows 10. When I select windows i am getting BOOTMGR is compressed error. Had read the other posts, however couldnt find suitable solution related to my issue.

Boot Repair link for your reference http://paste.ubuntu.com/p/YQ8sxP8yZt/ Kindly help.

  • You show several non-standard configurations. You have SFS which is Windows proprietary dynamic partitions. It used to be Linux would not work at all with that, but now does see it. Also Windows only boots from primary partitions with boot flag. You have boot flag on Linux partition. You are only showing XP boot files, not Windows 10. Did you delete the actual Windows boot partition, usually small? – oldfred Mar 22 '18 at 2:54
  • @oldfred, thanks for checking. If i am not wrong i had seen a boot partition with size 900 mb. And I didn't delete the windows boot partition. whether this boot issue could be sorted ? – Ash Mar 22 '18 at 3:45
  • Linux cannot normally see into the SFS, it is somewhat like LVM volumes are with Linux. So does SFS have a boot partition inside it? If so move boot flag to the SFS partition and restore a Windows boot loader. But you really need to remove the dynamic partitions, which is not particularly easy. see: askubuntu.com/questions/482768/… – oldfred Mar 22 '18 at 11:58

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