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Windows 7: Dual Boot - Delete a OS

02 Oct 2015   #120
DavidE

Multi-Boot W7_Pro_x64 W8.1_Pro_x64 W10_Pro_x64
 
 

@MexicoMatt

You should start your own thread for help with your specific problem.
I'm not sure how or if you can do what you want remotely.

Can you have someone available "hands-on" at the remote PC, so you can give them instructions for what to do ?

I help people remotely, and face the same type of problem, so i'm interested if there is "better solution" than what i know.


My System SpecsSystem Spec
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06 Oct 2015   #121
ewv

Windows 10 Home 64bit
 
 

Hello all,
I need to remove one of the OS on my DELL laptop, when I start it up it gives me the black screen (BIOS?) and I have to choose between Windows 7 & Windows 7...
When I go to Disk Management to follow your tutorial, there are the 3 partitions:
OEM partition
C: Primary partition
E: the System, Boot, Page File, Active, Crash Dump, Primary Partition

But it doesn't show 2x Windows 7 on there. So how do I get this solved? I just want it to start Windows 7 straight away when I start the computer, not ask me which one to start...

Thanks for your help!
(I'm not an expert, so would help if answer is not too technical... Thanks!)
My System SpecsSystem Spec
06 Oct 2015   #122
MexicoMatt

W7 Home Premium x64 / W7 Ultimate x86
 
 

@mchldpy @DavidE
Sorry i just saw your replies, I didn't get any email notifications.

OK well, remotely was not going to happen, so i tried to get it sorted at the week-end while at home. Don't remember how I ended up with that layout on the HDD, apart fro there was another partition there which i deleted, hence the Unallocated space.

Anyway i had the idea of Cloning the Win 8.1 partition to the Unallocated space, which worked, I then used EasyBCD to copy the Bootmgr from the Win7 to the NEW Win8.1 partition (now primary), which also worked, i then figured i could boot into the new cloned Win8.1 and delete the others. Sounded great in theory, but could not get the thing to boot into the new partition, kept booting into the original Win8.1 (and i know it did as I intentionally made them different sizes to tell the difference), even after changing the boot menu with EasyBCD and editing it so the other partition were not even an option, somehow, still didn't work. In the end I got fed up and decided i would just wipe everything and reinstall Win 8.1! However on going that route, i got as far as a missing media driver during the install so couldn't even do that, at that point i gave up and decided to enjoy the rest of my week-end!!

Thanks for looking in though.
My System SpecsSystem Spec
22 May 2016   #123
TekMan

Win 7 Enterprise x64/Win 8.1 Pro x64
 
 

I have a Win 7/Win 8.1 dual boot system.....so obviously, in setting this up in the beginning, Win 8.1 was loaded after Win 7.

However, now I would liike to upgrade the Win 8.1 OS to Win 10, leaving Win 7.....resulting in a Win 7/Win 10 dual boot system.

Do I need to delete the Win 8.1 first, then add Win 10 or can I simply somehow upgrade the Win 8.1 to Win 10 on my existing system?

Many thanks in advance....
My System SpecsSystem Spec
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22 May 2016   #124
Brink

64-bit Windows 10 Pro
 
 

Hello TekMan, and welcome to Seven Forums.

You could upgrade Windows 8.1 to Windows 10 from within Windows 8.1 without issue, and be dual booting Windows 7 and Windows 10 afterwards.

Windows 10 - Upgrade Installation - Windows 10 Forums
My System SpecsSystem Spec
23 May 2016   #125
TekMan

Win 7 Enterprise x64/Win 8.1 Pro x64
 
 

Many thanks Brink, that's great news....and thank you for the welcome.

But you know what, as I have been sitting here, I just remembered that I've got my Windows 8.1 working on two separate partitions and each partition is on a separate hard drive (C: and D....and I changed the registry so that all new programs load onto the D: drive....so I'm wondering if Windows 10 will simply not be able to complete the upgrade because of that registry change?? (maybe I could go back into the registry and revert the changes first??)

Here's the system I have now:

--On one hard drive (a solid state hard drive) I have a partition for Windows 7 and Windows 8.1
--On a second hard drive (a SATA drive) I have corresponding data partitions for Windows 7 and Windows
8.1

So when I boot up either operating system, the C: drive is the solid state drive and the D: drive is the SATA drive.

I guess I would wonder if I could just load a regular Windows 10 disc (not an upgrade) while I'm in Windows 7 and just pick the partition that Windows 8.1 is now loaded on and just let it load that way??
I think not.....I imagine I would need to delete the Windows 8.1 OS first and then try loading a new Windows 10 system while I'm in Windows 7....just like I did initially when I loaded Windows 8.1 as the second operating system from within Windows 7....??
My System SpecsSystem Spec
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