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Too many save games causes issues!
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*Having too many saves can cause problems and lag as well. Delete some of your saves!! You really should have no more than 30 saves if you can help it.
If you don't want to delete them, you can back up your saves to a new directory that Skyrim doesn't know about. documents > my games > Skyrim > Saves
Just make a folder named "Saves Backup" and drop any saves you want to cut back. Then, if you need them just move them back into "saves" again.
What this does and why too many saves are a problem.
When you load skyrim, you load all the data from all your saves pictures and basic tags. This can not only reduce the amount of ram you are using it can also cause bugs.
Cut back on how many saves you have! You'll minimize all kinds of problems by doing this.
You won't believe the difference in how much better Skyrim plays when your saves are cut back. I have waaaaay less bugs and save corruptions when I have no more than 30 saves at a time. I have a monster rig too. Imagine someone with an antiquated system.
Also if your hard drives are full this will significantly increase gameplay performance. Not because it's less stored on the drive, but because of the load saves put on skyrim's access to the hard drive. At least that is my opinion from testing it
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If the above does not work try this
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Corrupt saves can happen anytime. Usually they are caused when you remove a mod or add a mod that conflicts with another mod. Or you just installed a poison pill crappy mod. Sometimes corrupt saves just happen from normal gameplay. Hard drive error etc.
Generally, it is not recommended to uninstall mods midway through the game. If the mod installed any scripts, those scripts will remain active in your game save file which acts as the last mod loaded. If the script is triggered in the game and the mod is missing, it can cause a CTD or in the long run game instability. Some house mods have scripts that trigger on completing quest objectives in the vanilla game to display things. They can also modify a lot of other attributes of the game. It is better to leave the unneeded player house in place and just ignore it.
That being said, sometimes none of the above works, so here is the only known work around to try to rescue your corrupted save.
Clean Save Instructions:
*When you clean a save in this way, you will lose everything stored inside the mod you are scrubbing. So be sure to pull everything of value out first and put it in an unmodded vanilla house such as Breezehome.
How to fix a corrupt save:
1) Make a full save away from any installed mod's cells
2) Exit the game and disable the all of your mods
3) Fire up skyrim and make a new full save
4) Exit skyrim and enable the one mod each time you restart skyrim until you have problems. Then you'll know by process of elimination which one is causing you headaches.
5) Fire up skyrim and wait 24 game hours each time you test between enabling your mods
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How to disable a mod, open skyrim to the small launch window and you'll see:
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Play
Options
Data files
Tech support
Exit
See image here: https://imageshack.us/a/img9/4996/6vj7.jpg
Click on "Data Files" > in this window simply checking or unchecking the little box next to the mod will enable or disable it. Check means enable, no check means disabled. This however does not 'uninstall' the mod. But we will try this first.
See image here: https://imageshack.us/a/img547/8260/bd1s.jpg
Caveat you should know, all mods must be able to "update" or "download" fully while sitting and waiting for it while in this window. THe progress of mod updates is shown on the bottom right hand corner of the window.
See image here: https://imageshack.us/a/img209/4203/31f1.jpg
Hope one of those things helped you.