Thanks for answering. I've solved the problem using refind instead of
grub.
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https://bugs.launchpad.net/bugs/1709336
Title:
ubuntu 16 Grub2 fails to install dual boot windows 10
To ma
Your EFI system partition is corrupt; you will need to repair it with
either dosfsck or Windows' chkdsk/scandisk.
** Changed in: grub-installer (Ubuntu)
Status: New => Invalid
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ht