Learn how to reset your PIN if you aren't signed in to Windows and having trouble using your PIN.

Learn how to update Microsoft Office on PC and troubleshooting tips for installing Office updates.

Find answers to frequently asked questions about Office 2021 and Office LTSC for Windows and Mac on the official support page.

How to sign in to Outlook on the web, access your email, contacts, and calendar.

Learn how to get Windows Media Player 12 for Windows 10, Windows 8.1, and Windows 7.

Learn how to shut down, sleep, or hibernate your PC. When you’re ready to make your PC sleep, just press the power button on your desktop, tablet, or laptop, or close your laptop’s lid.

Learn how to manage extensions in Microsoft Edge, including adding, disabling, or removing them as needed.

Edit a drop-down list that's based on an Excel Table. If you set up your list source as an Excel table, then all you need to do is add or remove items from the list, and Excel will automatically update any associated drop-downs for you.. To add an item, go to the end of the list and type the new item.

Find out how to submit a request for a refund for a purchase of digital Xbox content.

If you're trying to add your Outlook.com account to Outlook or another mail app, you might need the POP, IMAP, or SMTP settings. You can find them below or by viewing them in your Outlook.com settings.. Outlook and Outlook.com may be able to detect your account's mailbox settings automatically, but for other non-Microsoft accounts, you may need to contact your email provider for their settings.