Microsoft Corp has altered its minimum hardware requirements for the upcoming Windows 11 surprisingly. 

Although Windows 11 is arriving later this year as a free upgrade for Windows 10 users, it will not be supported in Computers with older than 8th generation Processors.

Windows 11 will only officially support 8th Gen and newer Intel Core processors, alongside Apollo Lake and newer Pentium and Celeron processors.

That potentially rules out millions of existing Windows 10 devices from upgrading to Windows 11 with full support, and even devices like Microsoft’s own Surface Studio 2 which the company is still selling right now for $3,499.

Older devices that aren’t officially supported will be met with a warning during the Windows 11 install that the upgrade is not recommended, but the OS should still install.