On the microsoft community forums charles of microsoft says.
Upgrade to windows 10 pro free download without product key.
It ll keep working for the foreseeable future with only a few small cosmetic restrictions.
Microsoft allows anyone to download windows 10 for free and install it without a product key.
But if you have a product key for windows 10 pro windows 7 professional or ultimate or windows 8 8 1 pro you can click the change product key button and enter that 25 character key here.
To run the free windows 10 os you will have to download and upgrade to the free version.
Before upgrading to windows 10 pro make sure your device is up to date and running the most recent version of windows 10 home.
If the key is valid your pc will now restart to complete the upgrade.
According to professional windows tech support sites and managers here on this page we ll gather and show you two free methods to upgrade windows 10 from home to pro edition without losing data and formatting.
Today i will show you windows 10 pro activation free 2019 all versions without any software or product key update 2020 click run as administrator donate pa.
To upgrade from windows 10 home to windows 10 pro and activate your device you ll need a valid product key or a digital license for windows 10 pro.
How to activate windows 10 using a product key.
But you can still upgrade from windows 7 or 8 and download windows 10 unofficially.
From your windows 10 home running version 1511 enter the windows 10 pro default key under change product key.
Just follow and see how to free upgrade.
However the free upgrade to windows 10 ended officially on july 16th 2016.
And you can even pay to upgrade to a licensed copy of windows 10 after you install it.
For more info about how to keep your pc updated see windows update.