Fix your audio drivers. Hardware problems can be caused by outdated or malfunctioning drivers. Make sure your audio driver is up to date and update it if needed. If that doesn't work, try uninstalling the audio driver (it will reinstall automatically).

If a Microsoft 365 application such as Word or Excel isn’t working correctly, sometimes restarting it will fix the problem. If that doesn’t work, you can try repairing it. When you’re done, you might need to restart your computer. The steps to access the repair tool vary depending on your operating system.

If your purchase of Office or Microsoft 365 came with a product key, you enter your product key on one of the websites listed below for your product. After you enter your key, you can download and install Office, or you can renew your Microsoft 365 subscription. Tip: Get tech expertise with Business Assist.

When you copy text from a Word document, webpage, or other app's document and paste it into a Word document, you can choose how the text is formatted. You can keep the original formatting, merge with the destination formatting, or paste just plain text.

Change or reset your PIN. A PIN is a user-defined set of numbers, or a combination of numbers and letters, that allows you to sign in to your Windows device instead of a password. Your PIN is securely stored on your device, it isn’t transmitted anywhere, and it isn’t stored on a server.

If you're having trouble installing updates, see Troubleshoot problems updating Windows. For answers to frequently asked questions, see Windows Update: FAQ. Learn about Windows service packs and download the latest updates for Windows 10 and Windows 8.1.

Select the page number and press Delete. Select Close Header and Footer or press Esc to exit. Tip: If you want your second page to start at 1 rather than 2, go to Insert > Page Number > Format Page Numbers, and set Start at under Page Numbering to 0, rather than 1.

Windows 11 Windows 10. Keyboard shortcuts are keys or combinations of keys that offer a faster alternative to performing tasks typically done with a mouse. If you are trying to take a screenshot or screengrab, see How to take and annotate screenshots.

On the Home tab, select Sensitivity. If you're in Outlook select Sensitivity when composing an email on the Message tab. Choose the sensitivity label that applies to your file or email. Note: You'll see Learn more if your organization has configured a website to explain more about their sensitivity labels.

Training: Learn how to use Outlook in Windows, MacOS, iOS or Android, and Outlook on the web through a series of Outlook training courses.