Windows 8.1 and windows 7 dual boot

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rwadams123

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Oct 26, 2013
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I am trying to install windows 8.1 on Hitachi drive and windows 7 on Kingston hard drive. It was working fine until 8.1 install.
 
Solution
kewltoyz
I'm having an issue as well. I had Win 8 Pro & Win 7 Pro on two different 256 GB SSD drives in my laptop.
Unfortunately, I was using the Win 7 boot loader.
When I did the 8.1 update, it switched to the 8.1 boot loader and I can't boot into Win 7 and startup repair isn't able to fix it.
I wondered if there was a way to fix the boot loader on the Win 7 drive and keep using the 8.1 boot loader to get it running again? Because if I reinstall Win 7 I'll end up with the Win 7 boot loader again.

Surprisingly, this fix was easier than I thought.
I turned on view hidden files in Win 8.1 Pro on the C:\ drive.
Then I copied "bootmgr" and "BOOTNXT" onto the second hard drive root D:\.
Now both Win 8.1 Pro & Win 7 Pro boot perfectly using the...
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kewltoyz

kewltoyz

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Sep 18, 2011
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I'm having an issue as well. I had Win 8 Pro & Win 7 Pro on two different 256 GB SSD drives in my laptop.
Unfortunately, I was using the Win 7 boot loader.
When I did the 8.1 update, it switched to the 8.1 boot loader and I can't boot into Win 7 and startup repair isn't able to fix it.
I wondered if there was a way to fix the boot loader on the Win 7 drive and keep using the 8.1 boot loader to get it running again? Because if I reinstall Win 7 I'll end up with the Win 7 boot loader again.

Surprisingly, this fix was easier than I thought.
I turned on view hidden files in Win 8.1 Pro on the C:\ drive.
Then I copied "bootmgr" and "BOOTNXT" onto the second hard drive root D:\.
Now both Win 8.1 Pro & Win 7 Pro boot perfectly using the Win 8.1 boot loader.
 
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Solution
kewltoyz

kewltoyz

Distinguished
Sep 18, 2011
24
0
18,520
Actually this has given me the choice between either boot loader and worked quite well ever since.
As supported by Microsoft usually involves reinstalling or wasting hours on repairs that usually don't work and just add to the frustration.
If it didn't work following their protocols then a quick hack fix beats the heck out of troubling myself for hit or miss research every time I turn around.
 
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