Quicksave CTD is only from Heavy loaded game,not from mods and then game dont save correctly.You need set uGrids to 5 (Skyrim.ini). Example: [General]sLanguage=ENGLISH uGridsToLoad=5uExterior Cell Buffer=36bPreemptivelyUnloadCells=0iPreloadSizeLimit= 4194304000bUseHardDriveCache=0bUseBackgroundFileLoader=1bSelectivePurgeUnusedOnFastTravel=1 uStaticNeverFade=1iPostProcessMillisecondsLoadingQueuedPriority=5bForceFullLOD=1