Making Windows 10 bootable by itself (instead of dual booting)

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timmmay

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#168513 16-Mar-2015 21:13

I have a dual boot setup right now, W7 on one SSD (old OS) W10 on the other. When I just plug in the W10 drive it says it's not bootable. When I plug in the W7 driev as well it lets me boot from it and choose either W7 or W10.

How do I make W10 bootable?

andrewNZ

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#1260657 16-Mar-2015 22:27

the @3-500MB system partition on the W7 disk contains the boot info. Don't know if you can just copy it, but it'd be worth a crack.

I ALWAYS disconnect all other disks to prevent exactly this problem. I once had a new install place the system volume on a data disk, and didn't notice till I tried to remove it 12 months later.

hio77

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#1260702 17-Mar-2015 02:15

ild try booting from recovery disks for windows 10, then use bootrec /RebuildBcd

http://support.microsoft.com/en-us/kb/927392 might need to follow through with flagging things correctly if its not done already.

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Regs

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Snowflake

#1260703 17-Mar-2015 02:30

try the automatic repair, when booting off a windows 10 iso stick.

next option is running the /fixmbr and /fixboot commands

check this article for options, it seems to walk through nicely for windows 8 which should apply to Win 10 also: http://www.techspot.com/guides/630-windows-8-boot-fix/

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timmmay

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#1260712 17-Mar-2015 05:59

Thanks guys, I'll give this a go this evening. That link is especially handy Reg :)

timmmay

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#1260717 17-Mar-2015 07:07

Automatic repair did it, thanks! :-)