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Two O/S on same hard drive

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#1 Charles88


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Posted 28 March 2018 - 10:30 AM

I use mainly Windows 10 but I have some older application which only run on Windows7

Therefore I wonder if I can have the two O/S ( W-10 and W-7 ) on the same hard drive.

After booting the computer I want to have the option to run W-10 or W-7

Is this feasible and if so,how should I go about.

I am using two different hard drives,one with W-10,the other one with W-7 but I find

it troublesome to change drives all the time.

Thank your for your suggestions


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#2 Allan


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Posted 28 March 2018 - 10:34 AM


#3 Rocky Bennett

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Posted 28 March 2018 - 10:41 AM

There should be absolutely no software that ran on Windows 7 that does not run on Windows 10.




#4 ranchhand_


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Posted 28 March 2018 - 11:11 AM

To answer your question:


After booting the computer I want to have the option to run W-10 or W-7

There is an F-Key that you repeatedly tap (about 2 times per second) when booting, and it will give you an option screen; arrow down to which HDD you want to boot from, hit Enter and it boots into that drive. If you do not tap the F-Key, then it will boot into the default drive that is indicated in the BIOS. Commonly, it is F8 that is used, but it depends on the computer brand and BIOS they are using. Consult your manual that came with the computer, hopefully it will tell you. If it does not, then just find it by tapping each key as you boot to find the proper one, you won't hurt anything.

Actually, having separate HDDs is the best way to go; I currently have three installed with different OSs on each one. It is possible to create two partitions on one HDD, but that can cause complications in certain situations.

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#5 Chris Cosgrove

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Posted 28 March 2018 - 04:00 PM

An alternative you might want to consider is to set up a VM (virtual machine) inside your Win 10 OS then install Win 7 into the VM. For advice and information on doing this see the BC section -




The advantage of this is that you don't have to re-boot to change OS, in either direction. A disadvantage is that games tend not to play well if they are run inside a VM.


Chris Cosgrove

Edited by Chris Cosgrove, 28 March 2018 - 04:01 PM.
Wrong link !

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