Learn how to troubleshoot Windows sign in issues, including problems signing in to your Windows device after upgrading.

Combine several files into a single compressed folder to save storage space or to share them more easily.

There are several ways to calculate the difference between two times.

Learn how to personalize your Windows PC with themes, desktop backgrounds (wallpaper), and language packs.

To use voice typing, you'll need to be connected to the internet, have a working microphone, and have your cursor in a text box. Once you turn on voice typing, it will start listening automatically.

Learn how to create and print a single envelope with Microsoft Support, including adding delivery and return addresses, printer options, and size adjustments.

Erfahren Sie, wie Sie einen Windows-Product Key für die Aktivierung finden und wann Sie stattdessen eine digitale Lizenz verwenden.

Learn how to find the serial number on your Surface so you can register your product or request service.

Download Office language interface packs (LIP) By pressing submit, your feedback will be used to improve Microsoft products and services.

Learn how to use command-line switches to customize the startup process for Word, Excel, PowerPoint, Outlook, and Access. Find examples and troubleshooting tips.