Author Topic: Help Needed: Messed Up Trying to Dual Boot Windows 7 and 10  (Read 6403 times)

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Offline johnnyhenderson

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Help Needed: Messed Up Trying to Dual Boot Windows 7 and 10
« on: November 07, 2017, 01:35:07 pm »

I want to preface all of this by saying I don't know what I'm doing. I've been wanting to dual boot windows 7 and 10 for a while, ended up waiting til the last week the free upgrade to 10 is available, and dug my self a into a hole.

My goal was to install 2 copies of windows 7 then upgrade one to windows 10, rather than upgrading to 10 then installing another 7 so I wouldn't be stuck with only 10 if I screwed up, which I kind of did. Allow me to explain. I've been looking up tutorials on how to dual boot operating systems and they all say to create X amount of unallocated space on the hard drive, put in the OS disc, then restart and boot from the disc drive. I did all that, but every time I tried to boot from the disc drive an error occurred where it said something about hardware being changed and to restart my PC and run the repair on the windows 7 disc.

So I restart my computer and run the disc on the desktop like normal, but there's no repair option, only an install option. So since I already have the unallocated space, I figure I might as well just install it from there. I chose the online installation, then custom installation. When I got to the "where do you want to install windows" list, I saw that the unallocated space I created wasn't there. After much googling, I found somewhere that said I had assign the unallocated space to a letter drive. I went to change the drive letter for the unallocated space and found it wouldn't let me select the C: drive, so I gave it it's own drive letter X:.

I refreshed the windows install location list and the unallocated space, labeled "Disk 0 Partition 3 (X: )", was on there. I selected it, ran the install, my computer restarted a few times while it was installing and eventually I got to choose between 2 windows 7, which was my goal all along. But then it had me create a new user for this windows 7 in the new X drive. In all the tutorials I saw, all your user and all other information. I did so and continued. When I saw that this user had none of my other data, not even the drivers to run my keyboard, wifi card, or my computer screen at the proper resolution, I realized I seriously messed up and need help with this.

That's where I'm at right now. Sorry for the long post but I felt it was necessary to explain everything. Again, my goal was to install 2 windows 7, both which take their information from the C drive, then upgrade one to windows 10. I know I messed up majorly on this, as I said I don't know what I'm doing, and any help would be appreciated.

Thank you.

I didn't find the right solution from the internet.

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Offline NinjaGaurav

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Re: Help Needed: Messed Up Trying to Dual Boot Windows 7 and 10
« Reply #1 on: November 08, 2017, 09:37:25 pm »
You have to 2 more partitions in your HDD (i.e. X: WIN1 & Y: WIN2 ) then install OS on both partitions and upgrade one of them to Windows 10, you should be able to see the dual boot menu now. If you don't see dual boot menu then use EasyBCD( )

Follow this if you have trouble installing:

Hope I helped.


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