Make sure your graphics drivers are the latest for your card.
Makes sure you have the required version and packages of Visual Studio.
If you haven't done so already, download the SDK at Downloads.
Start Unreal Engine.
If you don't have a C++ project, create one, open it, and save it.
Exit Unreal Engine.
In the file explorer (NOT inside the Unreal Editor) navigate to the [PROJECT_NAME]/Plugins folder. - To find your project in the file explorer, in Unreal Engine, in the Unreal Project Browser, right-click your project and select Show in Explorer.
If there is no Plugins folder, create it yourself.
Move the dowloaded Zip file into the Plugins folder and unzip it into Plugins (not a subfolder).
You should see two new folders: ReadyPlayerMe and glTFRuntime.
Start Unreal Engine and open your project.
You should see the Missing Modules popup.
Click Yes and wait for the Editor to open with your project.
From the top toolbar, select Edit > Plugins.
Find the ReadyPlayerMe and glTFRuntime plugins. - For example, select All and use the search bar.
Check the Enabled option for each plugin.
Restart Unreal Engine.
Open the Content Browser and click Settings (cogwheel icon)(View Options in UE4). Make sure Show Plugin Content and Show Engine Content are both checked.
In the Content Browserexpand Engine > Plugins and scroll or use search until you find the gITFRuntime, glTFRuntime C++ Classes, ReadyPlayerMe Content, and ReadyPlayerMe C++ Classes folders.
If you are having trouble creating your project, see Troubleshooting for straightforward solutions.