If you are using the Classic Outlook, you might get a toggle on the upper right corner which allows you to switch to the "New Outlook". If you do not want this to appear, you can set a Registry key to hide this toggle:
HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Options\General
HideNewOutlookToggle = dword:00000001
In Windows 10 and Windows 11, when you log into an app (e.g. Teams) with your Microsoft Online account, you might get a pop-up:
Stay signed in to all your apps
You will have a big OK button to accept this or a small link saying "No, sign in to this app only". If you click on the OK button, all Apps that use a Microsoft Online account will now be logged in with the account. In addition, Windows tries to do a Workplace Join to Azure. So in most cases, clicking OK does more bad than good.
To prevent
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Since mid-2023, Exchange 2016 and Exchange 2019 do not need the MSMQ (Message Queuing) feature on the Windows Server anymore. You can de-install it via PowerShell (Run as Administrator):
Remove-WindowsFeature NET-WCF-MSMQ-Activation45,MSMQ
A server restart is needed after completion of the command.
My experience with servers, networks and gadgets.
