Installing the wrong version of SKSE will cause the game to crash on startup or throw an "Incompatible Version" error. SKSE64 v2.2.1 Silverlock.org : Use a tool like 7-Zip to extract the files. : Copy the files into your Skyrim Special Edition root folder SkyrimSE.exe is located), the Data folder. : From now on, you launch the game using skse64_loader.exe 3. Setting Up Your Mod Manager How to EASILY install Skyrim Script Extender (SKSE)

: If your game has automatically updated beyond 1.6.640, you can use the Unofficial Skyrim Special Edition Downgrade Patcher to revert your game files. Dependencies : Ensure you also update the Address Library for SKSE Plugins

The safest place to download SKSE is from its official source. For game version , you need the Current Anniversary Edition build 2.2.3 .

Download the SKSE 1.6.640 .7z or .zip archive from the links above. Open the archive using a tool like 7-Zip or WinRAR.

The team also officially mirrors their files on Nexus Mods. You can find it under the Skyrim Script Extender (SKSE64) Nexus Page. Under the "Files" tab, check the old files or archived section if the main file has moved on to a newer runtime. Which file do I look for?

Click the link provided above to download the skse64_2_02_02.7z compressed archive.

This is usually found at: C:\Program Files (x86)\Steam\steamapps\common\Skyrim Special Edition (Tip: You can right-click Skyrim in Steam > Manage > Browse local files).

Finding the Right SKSE for Skyrim Version 1.6.640 Skyrim Special Edition (SSE)

The number "16640" refers to a for Skyrim Special Edition (1.6.640), not an SKSE version number. The correct SKSE for game version 1.6.640 is SKSE 2.2.3 (or later builds).

The team also officially distributes builds on Nexus Mods under the title Skyrim Script Extender (SKSE64) .

From now on, do not launch Skyrim through Steam. You must run skse64_loader.exe to start the game with mod support. Why version 1.6.640 is a "Golden Build"

You should only ever download SKSE from its official sources to avoid malware or corrupted files. The developers host the files on two trusted platforms: skse.silverlock.org