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Windows 10 upgrade on dual boot machine

Will Win10 kill GRUB?

     
11:24 am on Aug 19, 2015 (gmt 0)

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I was wondering if anyone has had experience with this yet. I have one machine that has a dual boot setup. One OS is Windows 8.1, and the other is a Linux variant. The GRUB boot loader controls the switching between the OSs. I am fearful that Windows 10 might mess with the boot loader during the upgrade and kill my other OS.
12:28 pm on Aug 19, 2015 (gmt 0)

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I didn't have a problem with it. The only thing is Grub still states "Windows 7", but of course, now loads Windows 10.
10:55 am on Aug 20, 2015 (gmt 0)

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Did a bit of research and there are lots of threads on the Ubuntu forums about GRUB being messed with during Win10 updates. From what I can gather it seems as though having UEFI is an issue. That might be something to look for. I'm not using Ubuntu, but it may be relevant.
3:31 pm on Aug 20, 2015 (gmt 0)

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It might be. The computer I upgraded doesn't have UEFI, so that may be why I have no problems.
3:39 pm on Aug 20, 2015 (gmt 0)

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A solution, if ( as is frequently the case ) installing win 10 where Linux exists already ( dual boot ) "kills grub", is given here..
[askubuntu.com...]

Might need to modify the "edit" depending on which flavour of linux you are running..

You might also look into Grub2win ..freeware..
[sourceforge.net...]

HTH :)
1:31 am on Aug 23, 2015 (gmt 0)

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This machine has Win8 and the other OS already installed with GRUB2 working fine. The threads I read indicated that Win10 was overwriting the GRUB entirely and just booting to Win10.