Hi
Anyone know what happens if you reinstall Windows 8.1 from scratch and use your existing Windows 8.1 registration number?
Did you give up your registration for 8.1 when you updated?
I read that Windows 10 stops you from updating by deleting the Windows.old and the $Windows.~BT folders.
Something that I did myself, to save space.
It says that if you rename these folders before the 30 days are up you can still go back after the 30 day limit, by renaming them back again.
But if it will let you do that, it seems like it couldn't stop you from just reinstalling Windows 8.1 from scratch.
I'm not suggesting that this will work for sure, I'm just wondering how they would stop you.
Anyway I'm not sure if this is any help but it's a thought that you might look into.
I am pretty sure that if you have a System Image file of your hard drive with you old install on it you could just restore to that and ignore the upgrade button.
Mike
How to Roll Back Windows 10 After the 30 Days