Training: As you work in Microsoft 365, it's simple to share your files and collaborate with others in real time - on documents, worksheets, presentations, and more. Watch this video to learn how.

Unhide a chat. Need to see a hidden chat again? Unhide a chat that you've hidden before by using search. In the Search box at the top of Teams, search for the name of the person you were chatting with and select them. You'll see that the chat history is hidden (which you can choose to show by selecting it).

Important: If you originally installed the Excel add-in from a network file server or from a shared folder, you might need to remove the add-in from that location.If you installed the Excel add-in from a CD and you mapped your CD drive to a new drive letter after installing the add-in, you need to reinstall the add-in from the CD.

If you're having trouble using the Outlook for Android mobile app, Open an in-app Outlook support ticket. If you have a work or school account that uses Microsoft 365 for business or Exchange-based accounts, there may be additional requirements set by your IT admin.

Why accounts are locked and disabled. Microsoft accounts are usually locked if the account holder has violated our Microsoft Services Agreement.Here are some common reasons why accounts are locked, though not all account locks occur for these reasons:

Turning on the Memory integrity setting would block these incompatible drivers from loading. Because blocking these drivers might cause unwanted or unexpected behaviors, the Memory integrity setting is turned off to allow these drivers to load.

When you want people to know your message needs urgent attention, set the message as high importance. If the message is just an FYI, or if you’re sending mail to colleagues about a non-work related topic, you can set the message as low importance.

IMAP e-mail accounts. If you want to sync your IMAP e-mail, you first need to add the account to Outlook. For more information about how to add an account, see Add an email account to Outlook for Mac.. After that, there are two synchronization options: using IMAP IDLE (also known as "Live Sync") and creating schedules for subscribed folders.

Learn how to use voice access for accessibility. This page includes accessibility help articles for people who use Windows voice access to control their PC and author text using their voice.

If you sign in with a work or school account, learn how to manage payment methods for Microsoft business accounts. Add a new payment method. To add a new credit card, bank card or other payment method to your Microsoft account, follow the steps below: