The "SKSE 1.6.342" version (more accurately known as version of the SKSE64 build) marks one of the most significant—and frustrating—chapters in The Elder Scrolls V: Skyrim Special Edition modding history.
Ensure your mod manager is running with administrator privileges. If you'd like, I can:
Copy the contents of the Data/Scripts folder from the SKSE download into your game's Data/Scripts folder. skse 16342
Regular mods containing only .esp , .esm , .bsa , or loose textures and meshes do not care about your SKSE version. They will work perfectly regardless of your 1.6.x patch number. Troubleshooting Common Issues "SKSE version error" or Instant Crash on Launch
This is the most critical step. An incorrect SKSE version will prevent your game from launching. The "SKSE 1
For a long time, 1.6.342 was the "stable" version of the Anniversary Edition. Many modders transitioned their work to this build before Bethesda released subsequent updates (like 1.6.640 and the more recent 1.6.1130+).
Which (Vortex, Mod Organizer 2, or manual) are you using? Regular mods containing only
: Ensure your SkyrimSE.exe is actually version 1.6.342 by right-clicking the file, selecting Properties , and checking the Details tab.
Using a newer SKSE build (like those for 1.6.640 or 1.6.1170) or an older build (like 2.0.20 for 1.5.97) will trigger an explicit error message stating that your product version is unsupported. Step-by-Step Installation Guide
Always download SKSE from the official silverlock archive. Do not use third-party re-uploads.