SooperWood

You can use the "set time scale to X" command to make the time pass faster (20 is default, 0 is realtime) Then you have to wait: 10 days (240 hours) of in-game time. This is the default time period used before a dungeon or any other game location respawns.30 days (720 hours) of in-game time. This is the time period used if a dungeon has been cleared.

The old ones won't even load due to all the mods that were installed back than so I deleted them. But with the new ones I experience these crashes even with some clean saves I downloaded.

To all those who think they can solve this problem, I didnt't play Skyrim for 5 months or so, and came back (reinstalled) to play Dragonborn: Same computer, same OS (I did not reinstalled win 7 in the meantime) only 1 new DLC. But when I start the game now, after reinstalling it, it constantly freezes and/or crashes, sometimes at startup sometimes after maximum 1-2 minutes and it always crashes when I kill someone. I do not have any mods installed, I tried to run it with and without SKSE both didn't work. 5 months ago I didn't have any Problems besides some mod incompabilities. Thanks in advance , BCMercenary