Find your product key to activate Windows. 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.

If you don't have a desktop PC and the slider doesn't appear or work, try updating the display driver. Select Search on the taskbar, type Device Manager, and then select Device Manager from the list of results.In Device Manager, select Display adapters, then select the display adapter.Press and hold (or right-click) the display adapter name, then select Update driver and follow the instructions.

Next to Make Microsoft Edge your default browser, select Set default.

Important: Before trying any of the solutions below, make sure you back up your personal files. You can back up your Windows PC, or insert a USB drive and use File Explorer to drag and copy important files to the USB drive.If you’re signing into Windows with a Microsoft account, your system settings will be automatically restored after updating, once you’re connected to the internet.

Support for home products. Depending on your product and if it's still in support, Microsoft support experts are available to help you with a broad selection of support options and able to address product and service challenges for a more personalized experience. Chat or receive a call back from a technical support expert: If you have a Microsoft 365 Basic, Microsoft 365 Personal, or Microsoft ...

PowerPoint 2021 for Windows lets you create compelling content with the addition of features including co-authoring, Ink Replay, improved slide show recording, new stock media from the Office Premium Creative Content collection and new Draw tab additions such as Point Eraser, Ruler, and Lasso.

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2

On a Mac? See Check for Office for Mac updates automatically.. Click here for the Latest updates for versions of Office that use Windows Installer (MSI).. Choose your version of Office. If you're not sure what version of Office you have, see What version of Office am I using?. Not sure which type of install you have?

如果要粘贴到 Microsoft Edge 的应用或网站中，也可以右键单击，在上下文菜单中选择"粘贴"，然后从子菜单中选择纯文本。 注意: 某些应用可能会替代增强的复制和粘贴功能，只允许粘贴 Web 地址，或者使用自己的格式进行粘贴。

Learn how to find your Windows product key for activation or when to use a digital license instead.