Microsoft will officially end support for its most popular operating system in 2025. Here's what you should do with your Windows 10 PCs that fail Microsoft's Windows 11 compatibility tests before that day arrives. //

Business customers will need to pay dearly to stick with Windows 10. A license for the Extended Security Updates (ESU) program is sold as a subscription. For the first year, the cost is $61. For year two, the price doubles, and it doubles again for year three. The blog post doesn't do the math on those, probably because the total is uncomfortably high. A three-year ESU subscription will cost $61 + $122 + $244, for a total of $427.

In the original announcement of Extended Security Updates last year, a Microsoft spokesperson said that there will be a version of this program for consumers, but the company has yet to provide any additional details.