Larian Studios Forums Divinity - Original Sin Divinity - Original Sin - Technical Issues Error Codes 100, 119 on loading any save

In case none of the previous advice fixes it (for you or someone else), I was having the same errors presented after upgrading to Windows 10. I had copied the Larian Studios folder in Documents folder before upgrading, and ran the upgrade with the "Keep Nothing" option. I reinstalled Steam and D:OS, but although my save files were listed (from cloud), they all gave the errors 100, 119 and sometimes 120.

I then retrieved my backed up folder and pasted it over top of the one that had been created automatically on installation, and discovered that it required "Administrator Access" to perform it, even though I had rights to my own Documents folder. Still, this indicated that my current user didn't have security permissions on that folder. (Edit: I did try the save files, and got the same errors as before.) Closing the game, I right-clicked the Larian folder and went to properties, then the Security tab, then clicked on Advanced. The Owner of the folder is listed at the top, with an option to change. Clicked "Change", and in the resulting window typed in my username as it appears in the C:\Users folder, and hit Check Names. It found my user, then I hit OK. Having changed the owner of the Larian folder to my Win10 user, my saves began working again.

Hope this helps someone!