Here is how to downgrade back to 1.6.640 without using patchers :: The Elder Scrolls V: Skyrim Special Edition General Discussions

1. Open the run dialogue with the windows key + R, then type in steam://nav/console. This will open steam with the console window open. 2. Type in the console: download_depot 489830 489831 3660787314279169352 download_depot 489830 489832 2756691988703496654 download_depot 489830 489833 529180195221…
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