Software Updates Failed Notification

So, I recently upgraded from 16.2 core to 17 core using the upgrade tool but I'm not sure if it completed because the wizard crashed before I got a confirmation. The UI looks different and most things seem to be working as they should but it's been a little buggy and at startup I get a notification from the software center saying: "Software Updates Failed, an important operating system update failed. After I click on it, and dismiss it, everything appears to be up to date. I'm really hoping everything is ok because, like a knucklehead I didn't backup anything before attempting the upgrade so I really want to avoid losing everything with a fresh install.