Windows 10: Why does Messenger show up on start-up?

Every day I shut my AIO down and reopen/log-in the next day.Since Monday 06/16, every time I open my AIO my wife's Facebook opens during the loading process.I've went to settings and look at everything and I don't see anyplace that would indicate my computer beginning where I or anybody else left off.I have not made any changes except Windows updates or modifications of any sort.What can I do to eliminate her Facebook from loading and opening.Thank you for any help solving this.

:)

 

Windows 10 Facebook and Messenger app not showing notifications

We appreciate you for providing the information to us.

If the Messenger app doesn't show on the list under Notifications & Actions, it's possible that there are too many apps that are using the push notification. There is a limit to the number of apps you have installed that has push notifications enabled. You
may consider removing other apps that are not in use and check if it helps.

In addition, you can also try to check the Default App for Protocol to prioritize Messenger as the default. To do this, follow the steps listed below:

• Type Default app settings in the Search bar.
• Click Choose default apps by protocol.
• Look for the Messenger app then click on it.
• Restart PC and check if it works.
  

Let us know how it goes after performing the suggested steps.

 

Getting rid of Windows Messenger? How?

It's a component service, not in add/remove programs.

To turn on the Do not allow Windows Messenger to be run option, follow these steps:
1. Click Start, click Run, type gpedit.msc, and then click OK.
2. In Group Policy, expand Local Computer Policy, expand Computer Configuration, expand Administrative Templates, expand Windows Components, and then expand Windows Messenger.
3. Double-click Do not allow Windows Messenger to be run, and then click Enabled.
4. Click OK.

 

Windows Messenger Confirmation Email

No It didnt appear in my spam box but I updated to Windows live Messenger which sent the confirmation email and also verified windows messenger. Ty everyone for there suggestions