# Cannot start CMake GUI on Windows 8.1

**URL:** https://discourse.cmake.org/t/cannot-start-cmake-gui-on-windows-8-1/15763
**Category:** Usage
**Tags:** os:windows
**Created:** [July 29, 2026, 4:31pm UTC](https://discourse.cmake.org/t/cannot-start-cmake-gui-on-windows-8-1/15763 "2026-07-29T16:31:12Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![NEOWISE](https://discourse.cmake.org/letter_avatar_proxy/v4/letter/n/ce73a5/32.png) [@NEOWISE](https://discourse.cmake.org/u/NEOWISE)
#### Post date: [July 29, 2026, 4:31pm UTC](https://discourse.cmake.org/t/cannot-start-cmake-gui-on-windows-8-1/15763/1 "2026-07-29T16:31:12Z")

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Cannot start CMake GUI on Windows 8.1. It says cannot find d3d12.dll.

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### Author: ![craig.scott](https://discourse.cmake.org/user_avatar/discourse.cmake.org/craig.scott/32/20_2.png) [@craig.scott](https://discourse.cmake.org/u/craig.scott)
#### Post date: [July 29, 2026, 10:18pm UTC](https://discourse.cmake.org/t/cannot-start-cmake-gui-on-windows-8-1/15763/2 "2026-07-29T22:18:20Z")

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Starting with CMake 4.3, the minimum Windows version for the official CMake binaries is Windows 10. This was mentioned in the [CMake 4.3 release notes](https://cmake.org/cmake/help/latest/release/4.3.html#other-changes).