Originally Posted by forerodestim FIXXED, got achievement:
"If you are disappointed because you did not get the Steam achievement on PC even when you completed all the Daedric quests and it is only because you made some "bad" decisions like saving someone's life then you can cheat the achievement by repeating the last steps of the Azura's Star quest by typing these commands (Save before doing it): resetquest da01, coc azurasstarinterior01, prid 00028ad5, resurrect, moveto player. This resets the quest, beams you into the Azura Star, resurrects Malyn Varen and moves him to your position. Kill him and wait a few seconds, you will be teleported back to the Frozen Hearth. Now speak with Nelacar to end the quest. I guess when you chose the White Star instead of the Black Star when you did the quest the first time then you will be teleported to the Azura Shrine instead. Should work, too. Repeat these instructions multiple times (Depends on how many artifacts you missed) and you get the achievement. Now reload your last save game. Just in case this procedure has corrupted the game state."