Category Archives: Mac OS

Lync 2011 Mac Keychain Error

Today Lync 2011 decided it was not going to log in. Each time I tried I got an error about the oc_keycontainer and a request for my password.

I tried just deleting all the oc_keycontainer entries from Keychain Access, but still no luck.

It turns out it’s necessary to also delete the OC_KeyContainer_[username] file from ~/Library/Keychains

Re-launch Lync, and all should be good.

Restore OneDrive Happiness

I managed to make my OneDrive (aka lifeline) on Mac OS unhappy today. It would crash immediately upon opening.

I Bing’d around a bit, and came up with this fix:

Open Finder
Press: Shift-Command-G
Enter this path: ~/Library/Containers/com.microsoft.onedrive-mac/Data/Library/Application Support/onedrive/settings

Delete the file that ends in .dat

Reopen OneDrive and everything should be copacetic.

PS: This will cause OneDrive to rescan all of your files, but will not delete any files locally.

UPDATE 11/28/2016: I had some OneDrive weirdness again today. OneDrive Mac would not log in any Office 365 accounts. I had to delete the .dat files (as above) and also deleted the entire ~/Library/Containers/com.microsoft.OneDriveLauncher folder.

After that, I re-launched OneDrive, and all was fine! 🙂