Windows 10: Windows 10/Windows 7 Dual Boot.

Okay.

I got some games that refuse to run in windows 10. I have a legit copy of windows 7. So I am thinking about dual-booting windows 7, so I can play my old games again and only using the windows 7 OS to play old games that won't work on Windows 10.

So I just want to make sure I have this right before I do it. I don't want to mess up a perfectly fine and working install of windows 10 for an OS I left behind months ago.

In windows 10, partition off a unallocated section of the C; Drive that I have windows 10 installed on. Empty section of it naturally.

insert the windows 7 disc, reboot.. boot from Disc

install windows 7 to the newly partitioned unallocated section that I just made.

Once windows 7 is done installing, reboot

Now at this point, I assume a window will pop up before booting with the selection to either boot into windows 10 or windows 7?

If any of that is wrong, please let me know.

:)

 

Dual Boot Change from Windows 8.1 & 7 to Windows 10 & 7

I have a dual boot Windows 8.1 and Windows 7.

(1) Is it possible to have a triple boot Windows 10, Windows 8.1 and Windows 7?

(2) If not, can I just upgrade the Windows 8.1 to Windows 10 to have a dual boot Windows 10 and Windows 7? Or do I have to do the normal dual boot set-up?

 

How do I restore dual boot capability after Windows 10 clean install removed it

My computer was dual-boot with Windows 7 boot partitions on two separate drives. After upgrading to Windows 10, the dual boot provision worked fine. However after a clean install of Windows 10, dual-boot capability is no longer available. The boot partition
for the remaining Windows 7 syBistem is intact. Only the dual boot option is gone.

I tried the changing the default operating system under System Properties/Advanced/Startup and Recovery, but the only choice is Windows 10. Windows 7 isn't a option. I'm guessing that the clean Windows 10 install wiped out access to the dual-boot menu.

Thanks.

Bill

 

I did the same thing but in reverse as had a Win 7 installed so partitioned the HD and installed Win 10 and yes after the 3rd reboot or so I had a screen allowing me to boot into either OS

 

You have to have the older OS installed first. At least with all the other MS OS's, it wouldn't work with the newer one installed cause of the MBR has to change and be the newer one. Please anyone, correct me if I'm wrong.

 

Hi,

No correction required. The older OS doesn't know about the new one so first you need to install the older one than the new one.
After Win 10 or 8.0/8.1 for that matter has finished installing you should see a dual menu in the style of the last installed OS on the next reboot.

Old style bios has the MBR BCD store modified, EFI style bios uses the existing EFI partition to add entries of new OS to.

Should you use say a drive for each OS and both are enabled during set up of the last install and you tell Windows to install the new OS on the second HD then the first HD has to remain active or the second OS won't boot.
If only one is enabled during install then you need to use the bios boot menu (usually invoked by pressing F12 at boot) to pick whatever system you want to boot into.
Probably only useful if one of the installed systems is only temporary I guess.

Cheers, *Wink

 

Now two corrections are required. Have you actually tried installing Windows 7 from Windows 10? Windows 7 will setup dual booting if installed from Windows 10 to a second partition. I've done it. However, to be fair, both systems I have done it on have older, legacy style booting bios.

 

So installing to a second partition on the same drive won't work then? I would need to install it to another hard drive, then use a boot menu from bios to boot into 7 when I want to play older games?

 

You can install Windows 7 to the same hard drive or to another hard drive.

After the installation you can choose an operating system to start (see screenshot below).





When you are in Windows 10, open Command Prompt (Admin) and type: bcdboot %windir%

If you want the Windows 8/10 style dual boot page (see screenshots below).

 

genet's experience above was exactly the same as mine, on two different computers. Both of mine the Windows 7 was installed to a second partition on the same hard drive.

 

Hi,

That works indeed but it's a bit more complex. Never tried that on a UEFI system but in theory it should work just the same.

While Win10 may complain about its GPT partitions not being in the expected order, my experience is that it's not really an issue.

Should anyone know about a decent GUI based bcd editor for UEFI system I'd like to know about it. *Smile

Cheers, *Wink

 

EasyBCD

EasyBCD - NeoSmart Technologies

There's a link to free version. You don't even have to "register". When you get to the registration page, just click download.

 

Hi,

Thanks for that. I've used it before but not on a UEFI based system yet. I'll give it another shot then.

Cheers, *Wink

 

Okies, to clarify, I should be fine if I partition off a section of my windows 10 hard drive and install windows 7 on it.? I do have a back up drive if anything goes wrong (A drive a ghosted windows 10 onto after I finished installing everything... which I will probably update before I attempt this).

 

Yes. Just be sure to pick the empty partition to install Windows 7 to and not your Windows 10 partition! I like to use MiniTool Partition Wizard Free for resizing/moving my partitions.