I know, double post, but I feel it is important enough:   For those who need it:   To download the previous version of SkyrimSE.exe which will work with SKSE, until it and the dependant mods are updated, follow these instructions:   Open steam press win+R, in the "run" box paste: steam://nav/console. This will open the Steam console. In steam console, paste: download_depot 489830 489833 583541185188584076 the v1.5.50 exe