This article explains how you can get or create a digital signature for use in Office documents. To learn more about how to use them in Office documents, see Add or remove a digital signature in Office files.. What is a digital signature?

Tip: In Windows 7, you can synchronize your computer clock with an Internet time server to keep the computer clock up to date.To do this, select the date or time in the bottom right-hand corner of your screen, and then select Change date and time settings.Select the Internet Time tab, select Change settings, select Synchronize with an Internet time server, and then select Update now.

Message recall is available after you select Send and is available only if both you and the recipient have a Microsoft 365 or Microsoft Exchange email account in the same organization.Messages sent to or from a Hotmail, Gmail, or live.com account can't be recalled.

If you don't have PowerPoint installed on your computer, you can still open and view presentations by using PowerPoint for the web or PowerPoint on your mobile device.

To delete a page that contains text, graphics, or empty paragraphs, select the content to delete, and press Delete.You can also do this:

If you need to sum a column or row of numbers, let Excel do the math for you. Select a cell next to the numbers you want to sum, select AutoSum on the Home tab, press Enter, and you’re done. When you select AutoSum, Excel automatically enters a formula (that uses the SUM function) to sum the numbers. Here’s an example.

Learn how to log in to Microsoft Teams with your Microsoft 365 account. This step-by-step guide from Microsoft Support walks you through the process of accessing Teams on desktop, web, and mobile devices.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

Microsoft accounts are for personal use, and for accessing services like Outlook.com, Xbox or Skype. Microsoft work and school accounts are for organizations that use Microsoft 365 for business.. Choose your account type, or learn more about the differences.

Führen Sie die folgenden Schritte aus, um den PC für die Erkennung mehrerer Monitore einzurichten: Stellen Sie sicher, dass die Kabel ordnungsgemäß an die neuen Monitore angeschlossen sind, und drücken Sie Windows-Logo-Taste + P, um eine Anzeigeoption auszuwählen.. Wenn Sie weitere Hilfe benötigen, gehen Sie wie hier vor: