Microsoft account security info & verification codes
Important: You don't need to remove old security information unless there is an account security risk (e.g. someone else has access to your old mailbox).
Applies To: Microsoft account dashboard
Fix File Explorer if it won't open or start - Microsoft Support
Learn how to troubleshoot File Explorer problems in Windows. To open File Explorer in Windows 10, select its icon on the taskbar, press the Windows logo key + E on your keyboard, or select Start > Documents (directly beneath your user icon).. Here are some things to try if File Explorer won't open.
Use add-ins in Outlook - Microsoft Support
Notes: Starting in Outlook for Windows Version 2303 (Build 16215.10000), the All Apps button replaces the Get Add-ins buttonon the ribbon to view installed add-ins and access the Office Store.If you’re using an earlier version of Outlook, you'll see the Get Add-ins button instead.. If you don't see All Apps on the ribbon, your administrator may have turned off add-ins for your organization.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook on the web, New Outlook for Windows, Outlook Web App
Contact Microsoft Office Support - Microsoft Support
Contact Microsoft Office Support. Professional Direct Support for Microsoft 365 provides additional advisory support and proactive services to help plan, implement, maintain, and optimize Microsoft 365 solutions that align to your business's needs, as well as reactive support to assist you along the way.
Welcome to Copilot on Windows - Microsoft Support
At Microsoft, we're guided by our AI principles, our Responsible AI Standard, and decades of research on AI, grounding, and privacy-preserving machine learning.Data privacy and security is a key principle of responsible AI. We aim to help our customers use our AI products responsibly, sharing our learnings, and building trust-based partnerships.
SUM function - Microsoft Support
How do I add or subtract Times? You can add and subtract times in a few different ways. For example, to get the difference between 8:00 AM - 12:00 PM for payroll purposes you would use: =("12:00 PM"-"8:00 AM")*24, taking the end time minus the start time.Note that Excel calculates times as a fraction of a day, so you need to multiply by 24 to get the total hours.
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
Archive in Outlook for Windows - Microsoft Support
Note: If you have a message open in its own window instead of the Reading pane, the Backspace key will not archive the message. You have to close the message and view it in the Reading pane for the Backspace keyto archive the message. When the message is open in a new window, the only way to archive the message is by using the Archive button on the ribbon.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, New Outlook for Windows
Fix microphone problems - Microsoft Support
If you want to give access to desktop apps, make sure that Let desktop apps access your microphone is turned on.You can't turn off microphone access for individual apps. Others can't hear me. Try the following solutions:
Connect to a VPN in Windows - Microsoft Support
Whether it's for work or personal use, you can connect to a virtual private network (VPN) on your Windows PC. A VPN connection can help provide a more secure connection and access to your company's network and the internet, for example, when you’re working from a coffee shop or similar public place.
Introduction to lists - Microsoft Support
The following are some ways you can work with lists to help you to manage information for your group. Track versions and detailed history Track versions of list items, so that you can see which items have changed from version to version, as well as who changed the list items.If mistakes are made in a newer version, you can restore a previous version of an item.
Applies To: SharePoint Server Subscription Edition, SharePoint Server 2019, SharePoint Server 2016, SharePoint Server 2013, SharePoint in Microsoft 365, Microsoft Lists