Learn how to upgrade from Windows 10 Home to Windows 10 Pro or Windows 11 Home to Windows 11 Pro, including how to use a valid product key or the Microsoft Store.

Learn how to download and install apps you need from your Microsoft 365 business subscription.

Safe mode starts Windows in a basic state, using a limited set of files and drivers. If a problem doesn't happen in safe mode, this means that default settings and basic device drivers aren't causing the issue. Observing Windows in safe mode enables you to narrow down the source of a problem, and can help you troubleshoot problems on your PC.

Learn how to update Windows to ensure your device operates smoothly and securely with the latest features.

Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows 8.1, Windows 8, Windows 7 or Windows Vista.

How to use the IF function (combined with the AND, OR, and NOT functions) in Excel to make logical comparisons between given values.

Use the Office offline installer to install Office 2016 or Office 2013 if you don't have an active Internet connection or you're having problems with slow speed or unreliable connections.

Hotmail is nu Outlook.com. Meer informatie over hoe u zich aanmeldt voor toegang tot uw Outlook.com-, Hotmail-, Live- of MSN-e-mailaccount.

Wenn Sie Ihre Hardware geändert haben, um ein Upgrade auf Windows 11 durchzuführen und das System die Änderung nicht rechtzeitig erkennt, wird in diesem Artikel erläutert, wie Sie die Bewertung manuell initiieren.

可通过不同的方式删除应用和程序，因此如果找不到要查找的应用和程序，可以尝试另一个位置。 请注意，某些应用和程序内置于 Windows 中，无法卸载。