No!! MeiryoUI is a Windows system font customization tool that restores the ability to change user interface fonts on Windows 8.1, 10, and 11.
Windows removed the capability to customize UI fonts starting with Windows 8.1, leaving users unable to change system typefaces across their interface. No!! MeiryoUI solves this by modifying registry settings to apply custom fonts to UI elements. The tool works by directly changing the system font configuration, though it operates within constraints imposed by modern Windows versions.
The tool suits users who want to personalize their Windows interface appearance through font selection. It works on Windows 8 and newer systems, though active testing focuses on Windows 8.1 through Windows 11. Potential adopters should be aware of significant limitations: the tool cannot modify fonts in the Windows taskbar, preinstalled UWP applications like Settings and Paint, or applications that ignore system font settings. On Windows 11, titlebar font modification is not possible. Some antivirus software may flag the tool as suspicious because it modifies system registry settings, so users should understand the security implications and back up their registry before applying changes.
Development appears responsive to user feedback and known constraints, with documentation maintained through a project wiki alongside the main repository.
