Microsoft key resale fight heads to court in the UK — case potentially puts cheap Windows keys at risk
Tribunal weighs whether parts of Windows and Office fall outside Europe’s resale rules.

The legality of second-hand Microsoft Windows and Office licenses is back under the microscope as the company’s battle with a UK-based reseller returns to court this week. The matter concerns whether core parts of Microsoft’s software are exempt from Europe’s software resale rules, and what that could mean for the grey market that many DIYers rely on.
The UK’s Competition Appeal Tribunal (CAT) is holding a three-day hearing, running through September 11, to resolve a key question in the case: Do certain components of Windows and Office fall outside the EU’s software exhaustion rules? As it stands, these rules allow the resale of perpetual software licenses. Microsoft argues that the resale doctrine only applies to computer programs, and not to “non-program” elements like the GUI, which it says remain under copyright control even after the license is sold.
If that theory holds up, it could effectively gut the legal foundation for resale markets in Europe and the UK — markets that ValueLicensing, the reseller on the other side of the case, claims have been suppressed for years by Microsoft’s licensing tactics. “If Microsoft’s argument is correct, it would mean that the entire resale market in Europe should not exist,” the company told The Register.
Low-cost Windows keys have been a fixture in the European DIY market for years, allowing builders and refurbishers to pass on savings, especially for customers who don’t need the full Microsoft 365 package. PC Gamer notes that a ruling in Microsoft’s favor could “mean the end of second-hand Windows licenses,” in the UK.
The wider case dates back to 2021, when ValueLicensing filed a £270 million competition claim against Microsoft. At the time, ValueLicensing alleged that Microsoft starved the pre-owned software market by bunding discounts with conditions preventing resale, thereby costing the company £270 million in lost profits.
While the full trial isn’t expected until 2026, the current hearing does focus on some copyright questions that could scuttle the rest of the case before it gets there. With Windows 10 support ending in just over a month, any move that raises the floor on licensing prices could hit just as users are forced to upgrade.
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Luke James is a freelance writer and journalist. Although his background is in legal, he has a personal interest in all things tech, especially hardware and microelectronics, and anything regulatory.
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ezst036 And people around these forums still think Microsoft doesn't care about its licensing revenue stream.Reply
Microsoft cares.
Otherwise it wouldn't be for sale on Amazon retail packaged. Clearly Microsoft isn't making as large revenue from its built in advertisement scheme as they thought they could or else no matter what "enough" is never enough.
I wish these second handers would just wise up and switch to Linux already. They are only prolonging their own pain as well as prolonging our pain. Its a classic case of cutting off your nose to spite your face. -
vanadiel007 Second hand I could see a use case. But all these sites that sell dirty cheap keys, I would stay away from them as that sounds fishy to me.Reply -
hotaru251 correct me if I am wrong but a GUI is technically a program (just very light weight)....Reply -
palladin9479
Reread the article, MS isn't the one sueing.ezst036 said:And people around these forums still think Microsoft doesn't care about its licensing revenue stream.
Microsoft cares.
Otherwise it wouldn't be for sale on Amazon retail packaged. Clearly Microsoft isn't making as large revenue from its built in advertisement scheme as they thought they could or else no matter what "enough" is never enough.
I wish these second handers would just wise up and switch to Linux already. They are only prolonging their own pain as well as prolonging our pain. Its a classic case of cutting off your nose to spite your face.
A UK company is sueing MS claiming MS's licensing is against EU resale rules. Which it might be as they have a very different commercial law then the US or China / Taiwan.
Most OEM key resalers are in China / Taiwan where it's legal to do so. -
yahrightthere
Some things in the EU I would like here in the USA, one of which, if I'm not mistaken is privacy rights, If i have it correct (not sure that I do) you have to opt in before the MS, Amazon , Google & others of the data collection world can get all your info.Why_Me said:Leave it to the Europeans to ruin it for the rest of us.
Again not 100% sure about the above, but I'd sure like to see congress pass laws that would protect our privacy right! -
palladin9479
Other way around. This is a UK company trying to get the UK to rule MS's OEM license terms invalid.Why_Me said:Leave it to the Europeans to ruin it for the rest of us. -
Why_Me
Why not just leave things be.palladin9479 said:Other way around. This is a UK company trying to get the UK to rule MS's OEM license terms invalid. -
Math Geek Why_Me said:Why not just leave things be.
the terms are VERY VERY one sided in favor of MS. so someone is trying to make MS change it to something a bit more customer friendly.
i can def see why you'd just want to leave it alone.......