A mix of pc/game problems

I wasn't sure where to post this but w.e it decided here lol. First, my C:/ drive is almost completely full which i believe has been causing a lot of my errors 12 to point where i can't save or save as at all. Now, my E:/ drive has 300gb of free space (it was newly installed after a problem with another drive couple years ago) So i'm pretty sure i have to re-install everything to the E:/ drive. My question is.. would i be able to somehow use the file of where my current family is saved and move it to the newly installed game? and where exactly would this file be, i forgot.

Thanks guys, love your website always a lot of help. =]

Hello,

Try this for the saving errors: https://games4theworld.forumotion.com/t4523-the-sims-3-save-errors-fix-error-code-12-13-15-16
Then read this on how to backup your savegames: http://games4theworld.org/sims3faq.html#how_to_backup_savegames

Finally, yes, if you'd like to move the game to another drive, you'll have to reinstall. First backup your savegames, then uninstall the game and restart your PC afterwards. When all done, you should reinstall following these instructions: https://games4theworld.forumotion.com/t1171-must-read-how-to-install-the-sims-3-correctly

Please let us know if you need any kind of assistance during the process!

I re-installed everything but im a little confused about the ultimate fix, the pc says not working, the only working one is the temporary fix and when i click on it, it says sims 3 medieval. I am installing the manual patch right now.

Edit: i moved my saved games in the right folder from the backup and when i try to play it says a serious error has occurred loading riverview.sims3 please restart.
Gonna give ElDi's possible fix a try.

Edit: That didn't work because i never have done the Windows 95 compatibility mode. Before i re-installed into E:/ i only got error 12 and never this message, i re-installed correctly and as soon as i moved the contents from saves in my backup folder to my new installed saves folder, that message started appearing.
Tried to delete the .backup from riverview.sims3.backup and i deleted the riverview.sims and the ones that end in .bad but still nothing, i really need help now. =\

I actually used that tool before i went to bed and it still gave me "A serious error has occurred.." with my town. =\

Edit: Now i'm getting a different message lol, "cannot load this saved game. It may have been saved with expansion pack data that is no longer present..." Sounds to me like a lost cause to restore my old game..

Edit: IT'S ALIIIVEE!! lol basically i not only used my sims3.backup file, i also re-installed riverview town. Thanks so much to both of u guys, you're the best.