Why Microsoft Made Windows 10 Free - and Why It Was Never Really Free

Microsoft did not give Windows 10 away out of generosity, and it never stopped charging for Windows - it just moved the bill somewhere you would not notice it.

The free upgrade ran from 29 July 2015 to 29 July 2016, and it applied to one thing only: a PC that already had a paid Windows 7 or Windows 8.1 license on it.

Every new PC sold alongside it still shipped with a Windows license its manufacturer had paid for.

So the giveaway was a migration offer, and that distinction is the whole story.

The Problem Microsoft Was Actually Trying to Solve

By 2015 Windows was scattered across four versions people were still running, and Windows 8 had gone down so badly that most Windows 7 owners simply stayed where they were. Supporting all of them at once cost real money.

PC sales were sliding at the same time, because phones and tablets had taken over most of the jobs people used to buy a laptop for.

Apple had already made macOS updates free, and Chromebooks were quietly taking over schools. Asking a Windows 7 holdout to pay for a version they had already refused once was never going to work.

The Target Was a Billion Devices, Not a Billion Dollars

At its Build conference in April 2015, Microsoft set itself a public goal: one billion devices running Windows 10 within two to three years.

It missed that deadline badly, and only crossed a billion active devices in March 2020, around 18 months late.

The target still explains the decision better than any strategy language. One large install base is cheaper to support, easier to build software for, and worth far more over a decade than a single year of upgrade fees.

Where the Money Actually Comes From

Four routes carry Windows today, and only one of them ever looked like a price tag.

• New PCs. Manufacturers pay for a Windows license on every machine they build, and it is folded into the shelf price.
• Subscriptions. Microsoft 365, extra OneDrive storage, Xbox Game Pass and Copilot are all sold to people who are already on Windows.
• Store fees. Microsoft takes a cut of paid apps and games sold through the Microsoft Store, though a far smaller cut than it used to.
• Advertising and data. Suggested apps in the Start menu, web results in the search box and a per-device advertising ID all feed Microsoft's own ad business.

That store cut is worth stating properly, because the old 30 percent figure has been repeated for years after it stopped being true. Microsoft charges 15 percent on apps and 12 percent on games, and a developer selling a non-gaming app through their own payment system keeps everything.

If you want the shortest proof that Windows was never actually free, the Microsoft Store still sells Windows 11 Home for 139 US dollars.

The 'You Are the Product' Line Does Not Quite Fit

It is a good slogan and it is about half right here. You did pay for Windows, at the shop, inside the price of the laptop, or later in a subscription you renew without thinking about it.

What changed is the timing. Microsoft swapped one visible payment for a long quiet series of small ones, which is a much better business and a much harder one to notice.

The data collection is real and worth managing, but it is a side stream rather than the thing keeping the lights on. If it bothers you, most of it comes down in about five minutes - our guide to Windows 10 and 11 privacy settings walks through the switches that matter.

The other thing a free operating system buys is permission to keep adding to it, which is how Copilot landed on Windows 10 machines uninvited and helped itself to 3.3 GB of drive space.

What That Free Upgrade Costs You in 2026

Windows 10 stopped getting security updates on 14 October 2025, which is where the bill finally arrives.

Microsoft has since extended free consumer security updates to 12 October 2027, and there are three ways in: switch on Windows Backup settings sync, spend 1,000 Microsoft Rewards points, or pay 30 US dollars once. One enrollment covers up to 10 devices.

After that runs out, the honest choices are Windows 11, a different operating system, or a machine that stops getting security fixes.

Quick questions

The upgrade was free. The operating system never was.

If you are staying on Windows 10 a while longer, spend five minutes on the privacy settings that turn the data collection down, or tell us how you got on if you have already been through them.