Right-click and uncheck Read-only in Properties.
You must create a custom resolution so your monitor can support the non-standard 1400x1050 output. FAZE MARTOZ STRETCHED RESOLUTION (1400x1050)
Open the NVIDIA Control Panel , go to Change resolution > Customize , and create a new profile with 1400 horizontal pixels and 1050 vertical lines . Right-click and uncheck Read-only in Properties
Open the file and use Ctrl + F to find and change the following lines to (X) and 1050 (Y): ResolutionSizeX=1400 ResolutionSizeY=1050 LastUserConfirmedResolutionSizeX=1400 LastUserConfirmedResolutionSizeY=1050 go to Change resolution > Customize
Save the file and re-check to prevent Fortnite from resetting it. Competitive Note
Stretched resolutions make player models appear wider on screen. While it does not change actual hitboxes, many players find it easier to track and hit shots on these visually larger targets.