Windows 10 includes this really unhelpful error message by Laura Lorenzetti @FortuneMagazine July 30, 2015, 2:57 PM EDT E-mail Tweet Facebook Google Plus Linkedin Share icons Windows 10 launched this week to warm reviews. The free upgrade for those running Windows 7 and up comes with an easy two-step installation, but that doesn’t mean things don’t go wrong. Actually, sometimes something happens. And that’s exactly what Microsoft MSFT will tell you. The error message has popped up for a handful of users who took to social media to share the vague and profoundly unhelpful pop-up. The “something” can actually be fixed pretty easily by updating the language preferences, according to a solution uncovered by a Reddit user. Here’s how some people reacted. Tried upgrading my tablet to #Windows10, until… #SomethingHappened pic.twitter.com/J4rs4tzbof — Craig McIntyre (@CMcIntyre90) July 30, 2015 Ok clearly something has happened upgrading but it will remain a mystery #Windows10 fail pic.twitter.com/LFGSpMxzF7 — David Fox (@djfoxnz) July 30, 2015 Congrats, @Microsoft, on setting a new standard for unhelpful error messages. This will never be topped. #Windows10 pic.twitter.com/A24Ez6tqMn — Jonathan Timar (@jonathantimar) July 29, 2015 READ MORE: Watch Microsoft’s unusual Windows 10 ad. Sign up for Data Sheet, Fortune’s daily morning newsletter about the business of technology.