A product key is a 25-character code that's used to activate Windows and helps verify that Windows hasn't been used on more PCs than the Microsoft Software License Terms allow.

Most tools and options in Microsoft Edge are available when you select Settings and more > Settings.

Now that you’ve backed up your PC, you'll be able to more easily transfer your info to a new one whenever you're ready. The Windows Backup app automatically works in the background to remember your latest changes.

If you're moving from a Windows 7 or Windows 8.1 PC to a new Windows device, you'll find that the best way to get apps and games is through Microsoft Store.

Erfahren Sie, wie Sie Microsoft 365 oder Office 2019 auf einem PC oder Mac installieren, erneut installieren, oder aktivieren.

Whether you’re starting from a Microsoft template or updating one of your own, Word's built-in tools help you update templates to suit your needs. To update your template, open the file, make the changes you want, and then save the template. In Microsoft Word, you can create a template by saving a document as a .dotx file, .dot file, or a .dotm fie (a .dotm file type allows you to enable ...

How to sort and organize your Excel data numerically, alphabetically, by priority or format, by date and time, and more.

How to use the COUNTIF function in Excel to count the number of cells that meet values you set.

使用 vlookup、hlookup 和其他函数（如 index 和 match）根据您输入的值搜索和查找数据。 本文将让您快速回顾 vlookup，然后链接到更多内容。

Download information. The following files are available for download from the .NET Download site: Download the Microsoft .NET Framework 4.8 offline installer package now.