https://sureai.net/forum/viewtopic.php?t=11707
stuemper wrote:You are not supposed to verify the game cache, Steam will check for the original Skyrim directories. Obviously Steam won't find the correct Skyrim directories, because Enderal is installed on top of Skyrim. You just destroyed your installation.
Uninstall Enderal completely (not archiving!) via the launcher. Clean the Skyrim folder by hand. Install Skyrim via Steam. Verify its game cache: https://support.steampowered.com/kb_art ... -QEUH-3335
Then run it to see if it works. If yes quit. If not you have done something wrong with the Skyrim installation.
Make sure you have the newest launcher A52: http://enderal.com/?lang=en
Download a fresh installation package (we recommend torrent) and install it with this instruction: https://www.youtube.com/watch?v=dwlSsjehgQA