Learn how to unlock your Microsoft account and resolve 'account has been locked' error message.

How to freeze panes in Excel to keep rows or columns in your worksheet visible while you scroll, or lock them in place to create multiple worksheet areas.

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Erfahren Sie, wie Sie ein Installationsmedium für die Installation oder Neuinstallation von Windows 7, Windows 8.1 oder Windows 10 erstellen.

How to lock cells in Excel to protect your data. You can also unlock a range of cells and grant permissions to others to edit.

Defragment your Windows 10 PC. Optimizing your drives can help your PC run smoother and boot up faster.

Probeer deze oplossingen als u zich niet kunt aanmelden bij uw Outlook.com-, Hotmail-, Live- of MSN-e-mailaccount of als u niet goed weet hoe u zich moet aan- of afmelden.

If Scroll Lock is on, your cursor moves between columns and rows, not cells. Here's how to turn off Scroll Lock.

Get tips for how to set up and test microphones in Windows.

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.