How to Setup VTube to run in the Full Resolution of 4K UHD Monitors

About 4K UHD

4K UHD supports resolutions of 3840 x 2160 for super crisp images. 

New Automatic Registry Setting During VTube Installation as of April 8, 2025 Allows for Proper Font Scaling

Manual Setup of Registry for 4K UHD Resolutions

Because 4K monitors can have such high resolutions, they can also create very small text that is nearly unreadable on desktop monitors. For VTube installations created before April 8, 2025, you will need to manually set a VTube.exe property to allow for proper scaling in 4K monitors.

This is a video of our original test of 4K.

We discovered that this worked without the above property change because the primary monitor was a 2K (1920 x 1080) monitor.  If the primary monitor is the 4K resolution, then you will need to setup the properties of the VTube.exe like we show in the video above.