Upgrading to release version from preview?

All depends on where you get the info from. People interpret it differently and then repeat their version of what they read and so on. I agree, Microsoft needs to post details that are easy to understand so we know what's what when the time comes.

f14tomcat said:

@Boozad, Good info here. It would answer 99.9% of my issues if you could clarify the part I hightlighted in red. I have 8.1 pre-installed dual-booting 10 preview. I have used an 8.1 MS supplied ISO, burned to DVD, to re-install because I wanted to de-crapify it. It worked fine. After upgrade to 10 on 7/29, should I be able to repeat that process? Re-install 8.1 from the same DVD as dual-boot with the real 10?

@f14tomcat, here's the clarification straight from Gabe's mouth (well, fingers). The Free Windows 10 Will Support Unlimited Clean Installs - Windows 10 Forums

Boozad said:

@f14tomcat, here's the clarification straight from Gabe's mouth (well, fingers). The Free Windows 10 Will Support Unlimited Clean Installs - Windows 10 Forums

So, the answer is no.

f14tomcat said:

So, the answer is no.

Oh you meant re-use the 8.1 license you upgraded?

Boozad said:

Oh you meant re-use the 8.1 license you upgraded?

I think I've got myself going in circles, now. If dual-booting, I can only run 1 OS at a time. I meant can I re-install 8.1 to same​ hardware as 10? Key is in UEFI. Boot to 10, run 10. Boot to 8.1, run 8.1. Am I making any sense???

f14tomcat said:

I think I've got myself going in circles, now. If dual-booting, I can only run 1 OS at a time. I meant can I re-install 8.1 to same​ hardware as 10? Key is in UEFI. Boot to 10, run 10. Boot to 8.1, run 8.1. Am I making any sense???

Yeah I get you. I don't see any reason why that wouldn't be possible, are you using separate drives for each OS? I'm booting W7 on one SSD and W10 on another in a dual boot, I'd just remove all of my drives except the drive I was installing on then perform a clean install, plug all the other drives back in and you're good to go. That will work for 7, 8 or 10.

Unless you'd be using the same 8.1 OS you used to upgrade to 10, that wouldn't work as the 8.1 license would be now void I'd have thought.

Boozad said:

Yeah I get you. I don't see any reason why that wouldn't be possible, are you using separate drives for each OS? I'm booting W7 on one SSD and W10 on another in a dual boot, I'd just remove all of my drives except the drive I was installing on then perform a clean install, plug all the other drives back in and you're good to go. That will work for 7, 8 or 10.

No, same 1TB Seagate. Been working fine. Any occasional burps (usually self-inflicted) I fix with my handy-dandy Macrium Rescue DVD.

I placed an edit in my last post mate.

Boozad said:

I placed an edit in my last post mate.

I saw it.... It's all really "curiosity hunger". If I lose 8.1, and for some goofy reason I want it, I can always buy one! Same for 7. Thanks for your indulgence!

P.S. to last post... we (the Forum) need to encourage people to make good preps for the upgrade. I posted that somewhere else, but it's important. Get your ducks in order, do backups, save keys, etc. Get ready so no disasters.