If the reserved space fails to clear, you should power cycle your Xbox One and try again.Press on your controller and select Clear reserved space.Navigate to the right where the Saved Data is located and highlight Reserved Space.Press on your controller and select Manage Game.Highlight the modded game from the Games category.Navigate to My Games and Apps from the Xbox One dashboard.If you are unable to load the game on Xbox One to delete your mods, you can still do so manually by following the below steps: From there, find the mod you wish to delete in your Library, select it, and use the Delete option.
To delete a mod, open the game and select Mods from the main menu.
If you wish to install new mods at this point, you will need to remove some existing mods and free up some space before you do. The limit for The Elder Scrolls V: Skyrim SE is 5GB, the limit for Fallout 4 is 2GB. If you meet or exceed the storage limit, you will not be able to install any more mods and will receive this error message. The Xbox One has a limited storage capacity for the download and installation of mods.
