Windows 10 Dual boot Windows 10 and Win 8.1 with Win 10 installed

[ameneses54]

My situation is usually the opposite of what I've found online. I upgraded to Win 10 and I'm quite comfortable with it, the problem is that a critical application for my job does not work with this platform. As I have space, my preferred option is to dual boot with Win 10 and Win 8.1 on the system. Please guide me on how to go ahead with this endeavor.

This is quite an urgent requirement so I'd appreciate help.

 

[ussnorway]

Not much info to go on but... ok as this is a work machine I'll assume you made an image before the upgrade so (i would);

1. insert a new hdd... formate it gpt then boot the back up 8.1 image onto it.
2. open disk manager, make some blank {un-allocated} space and then install a fresh WX onto that space.

this will give you both systems (activated) on the same machine in a standard dual senario.

the main point here is that your wx upgrade worked so you DO have a wx key and Microsoft is fine with you running 8.1 as well as 10... I have 8 and 10 on my laptop without issue and 8.1 isn't that much difference to 8 in the boot up.

p.s. whats the real important program that doesn't run on WX... not facebook or the porn network is it?

 

[ameneses54]

Not much info to go on but... ok as this is a work machine I'll assume you made an image before the upgrade so (i would);

1. insert a new hdd... formate it gpt then boot the back up 8.1 image onto it.
2. open disk manager, make some blank {un-allocated} space and then install a fresh WX onto that space.

this will give you both systems (activated) on the same machine in a standard dual senario.

the main point here is that your wx upgrade worked so you DO have a wx key and Microsoft is fine with you running 8.1 as well as 10... I have 8 and 10 on my laptop without issue and 8.1 isn't that much difference to 8 in the boot up.

p.s. whats the real important program that doesn't run on WX... not facebook or the porn network is it?

Didn't think of this before, "great option"

 

[Saltgrass]

There are not many things that worked with 8.1 but will not work with 10.

Can you think of anything you may have installed on your 8.1 install you have not on Windows 10, something like a .Net version? Maybe a special driver?

If you can install the software, could you reinstall it and possibly use a compatibility setting?

 

[BIGBEARJEDI]

Hi,
I'm getting the feeling this is a work machine, and many companies including IBM have policies prohibiting multi-boot OS configurations. If you have an IT department or an IT consultant, I strongly urge you to contact them first prior to attempting this. Having been in IT for 25 years, it's worth giving you a heads up on this. If it was a home machine, I still do not run any of my computers or laptops this way and haven't for many years, but, at least you won't get into trouble at work if you ask first rather than later!!

Words to the wise.
<<<BIGBEARJEDI>>>