Forum Discussion
OneDrive for Business sign-in error 1200
Terry_Lazer Respectfully, neither of those things work. The "background apps" thing is pure guessing which MS also suggested. There is no background app, and it's not a credentials issue.
Here's something that does work:
Uninstall OneDrive
Search through the user's AppData folder and delete absolutely everything named after OneDrive (it's a long list that includes caches, logs, a whole host of stuff)
When all of that is gone, reboot, reinstall OneDrive and you should be ok.
I'm certain that the nuke and pave approach could be narrowed down to clearing fewer, specific, files, but I don't know which they are yet, and this has worked for us on two machines so far.
-Mike
I think I located the culprit. I went here:
C:\Users\UserName\AppData\Local\Microsoft\OneDrive\settings
There were folders Business1, Business2, Business3, Personal... I deleted all... Business1 and Personal were locked... Business2 and Business3 went away... and I was able to kick off a OneDrive sync (no 1200 error at sign-in/MFA).
This fixed OneDrive, but I still can't locate the file that is preventing us from re-adding the same account to Outlook ("Something went wrong").
STL
