It seems Microsoft have started to ready the deployment for the final installment of Windows which they are marketing as a ‘free’ upgrade.

Q. Is it really the last version of Windows?

Honest Answer No. It will be the last numbered release of Windows the public will see marketed as a product, sold in a box from a high street store. Builds will still be developed on a set cadence but instead released on demand, or simply when ‘ready’ via Windows Update.

A positive step for Microsoft.

Q. When can i install it?

Microsoft Answer 29 July 2015

Honest Answer Today, you can download ‘Windows 10 Insider Preview’ after signing up for the Windows Insider Program.

Q. Is it really free?

Microsoft Answer Yes. Windows 10 is a free upgrade for qualified Windows 7 SP1, Windows 8.1 Update and Windows Phone 8.1 devices. This free upgrade is offered for one year after Windows 10 is available. After you upgrade, Windows 10 is yours to enjoy.

So is it really free?

Honest Answer No. Windows 10 will be marketed as free for the first year following release to encourage the masses to update their ‘qualifying’ version of windows. It’s a free offer, valid for one year until 29th July 2016

You can upgrade at any time, but it will cost you after the 29th July, 2016.

Microsoft will keep the OS secure and up-to date with the latest security patches and builds for the life of the device (Windows update).  If you change the device (most of us will, every 3-5 years) and re-install Windows 10 you will need to purchase a license.

Licensing model yet to be released, some online retailers have ‘leaked’ pricing. Microsoft re-seller Newegg states OEM versions:

Windows 10 Home $109.99
Windows 10 Professional $149.99

This is more than a one-time upgrade: once a Windows device is upgraded to Windows 10, we will continue to keep it current for the supported lifetime of the device –at no additional charge. Terry Myerson – Microsoft Product Manager

The ‘Windows Store’ will allow you to purchase ‘apps, games, music and movies’.

The upward trend in subscription based services (Office 365, OneDrive for Business, Skype) will continue to play a significant role in the Microsoft revenue model, Windows 10 “features” will also no doubt need to be purchased from the Windows Store.

Microsoft Windows 10 FAQ.