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The dual boot menu always gets by passed after Windows 10 automatically updates. Is there any work around this? It's a pain to always recover the grub menu. Last time it occurred, I did all the magic in the book and yet it did not get recover. I have a new system and how to avoid this happening in the first place?

naseefo
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    I simply run boot-repair and then remove the 5 or 6 extra Windows entries from grub: Boot Repair created too many Grub menu entries for Windows – WinEunuuchs2Unix Dec 20 '18 at 00:08
  • Microsoft Windows Updates are a pain. They twiddle with the boot parameters in Windows, thereby bypassing GRUB and booting directly into Windows. boot-repair won't solve this problem. You have to use bcdedit from Windows to fix it. Some Microsoft updates even wipe Ubuntu partitions! – heynnema Dec 20 '18 at 00:57
  • @WinEunuuchs2Unix please see my comment. boot-repair won't solve this problem. – heynnema Dec 20 '18 at 00:57
  • @heynnema OP just said "I did all the magic in the book" which implies bcdedit was already done. But yes for myself boot-repair does the trick and haven't had to resort to bcdedit or any other magic spells. I think the OP needs to clarify all the magic tricks performed with exact commands used and copy and pasted output (if there is any errors). – WinEunuuchs2Unix Dec 20 '18 at 01:01
  • Yet I did bcedit, boot-repair, disk checks. None of it helped. But I could see that the partition still existed. I had a mounting problem with the said partition though. I am not sure why. – naseefo Dec 20 '18 at 18:32

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I think the only way is to have one OS in virturalbox, or have two separate hard drives(or two computers), removing the one with Ubuntu on it during windows updates. I had asked similar question few months ago about protecting linux partition from windows.

crip659
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    This is the path I followed for critical Windows applications on an Ubuntu host. Paired with regular backups, it has been highly reliable and recoverable for years.While it requires a purchased Windows key, I found it money well spent. And I can use Windows and Ubuntu simultaneously – user535733 Dec 20 '18 at 12:03