Obtain a digital certificate and create a digital signature
A digital certificate is necessary for a digital signature because it provides the public key that can be used to validate the private key …
Download free, pre-built templates | Microsoft Support
Find and download free templates to create documents like calendars, business cards, letters, greeting cards, brochures, …
Create an Xbox profile | Xbox Support
Learn how to create an Xbox profile using your Microsoft account.
Obtener más ayuda | Xbox Support
¿Necesitas ayuda con una consola Xbox, un juego Xbox o la Red Xbox? Descubre cómo contactarnos.
Digital signatures and certificates | Microsoft Support
When you send a digitally-signed macro or document, you also send your certificate and public key. Certificates are issued by a …
How to resolve certificate errors | Microsoft Support
Click on the status bar where it says Certificate Error. In the subsequent dialog, verify that the server name (s) are the correct …
View certificates | Microsoft Support
The email encryption certificate details for the messages that you send or receive can be reviewed.
View digital signature and certificate details | Microsoft Support
You can view information about a digital signature, or the certificate that is used to create the digital signature, in Word, PowerPoint, …
Secure Boot troubleshooting guide | Microsoft Support
Mar 19, 2026 · Secure Boot certificate servicing on Windows is a coordinated process between the operating system and a device’s …
Update Microsoft 365 or Office on your macOS or iOS device
Jul 13, 2026 · Update your Office or Microsoft 365 apps Choose the steps below based on the OS version (macOS or iOS) you are …
Microsoft 365 help & learning | Microsoft Support
Learn about AI credits and feature limits for each Microsoft 365 plan. Draft, summarize, analyze, and explore ideas with Copilot Chat. …