In versions 4.27 and earlier, you can bypass this by launching with the command line argument: UE4Editor.exe -NoEpicPortal Create a shortcut and add this to the target field.
UE 4.27 will eventually disappear from Epic’s "Archive" tab (like UE 4.25 did). Future Windows updates may break it. Here is how to preserve your offline installer for 5+ years: download unreal engine 4.27 offline installer
Educational institutions can request access to a specialized offline installer that strips away the Epic Games Launcher. This is ideal for bulk deployments across multiple lab machines. You can submit a request via the Unreal Engine EDU Offline Request Form. 2. The "Portable" Method (No Installer Needed) In versions 4
Open the editor directly by running Engine/Binaries/Win64/UE4Editor.exe . 3. Source Code (GitHub) Here is how to preserve your offline installer
If you are part of a school or a licensed organization, you can request or download an offline installer directly from Epic Games Developer Portal: Administrators can log in to the Epic Games Developer Portal , navigate to Unreal Engine > Downloads , and select Unreal Engine Offline Installer from the dropdown. Educational Request: