Configuring preferences and options in Outlook.com
I'm constantly getting this too.
"
Reconnect to Google
You connected Google to your Microsoft account so that you could stay in better touch with friends from both services. Unfortunately, we haven't been able to connect to your Google account lately.
Reconnecting is easy
Luckily, you can get things working again just by checking your Google connection settings and clicking Connect Google. Sign in to Google from there, and you're done!
"
I've done NOTHING. I have not changed my password or settings or anything. Sometimes I haven't even accessed my account between the times I get these notifications.
It's annoying. I wish I knew why this was happening at least... even better if I could get it to STOP happening.