Discover how Microsoft Copilot, your everyday AI companion, can help you achieve anything you can imagine.

Power Pivot in Microsoft Excel is an add-in you can use to perform powerful data analysis in Excel. Here’s how you enable Power Pivot before you use it for the first time.

Get help for the account you use with Microsoft. Find how to set up Microsoft account, protect it, and use it to manage your services and subscriptions.

The REGEXREPLACE function allows you to replace text from a string with another string, based on a supplied regular expression ("regex"). Syntax The REGEXREPLACE function replaces strings within the provided text that matches the pattern with replacement. The syntax of the REGEXEXTRACT function is: REGEXREPLACE (text, pattern, replacement, [occurrence], [case_sensitivity])

Support for Windows 10, Office 2016 and Office 2019 has ended on October 14, 2025. Learn more about your options for Windows 10 or for Office.

Microsoft Editor uses enhanced proofing tools for Microsoft 365 subscribers. Identify spelling, grammar, and stylistic issues within your documents.

Learn how to use the Gaming Services Repair Tool to troubleshoot installation and update issues with Gaming Services on PC.

What is the PC Gaming Preview? The PC Gaming Preview is available through the Xbox Insider Hub on Windows devices. Joining grants users early access to preview versions of a variety of gaming apps on Windows, including: the Xbox PC App for Windows, Game Bar, the Xbox Accessories app, and Gaming Services. These preview versions may also include new features not found in the General Availability ...

To prevent other users from accidentally or deliberately changing, moving, or deleting data in a worksheet, you can lock the cells on your Excel worksheet and then protect the sheet with a password. Say you own the team status report worksheet, where you want team members to add data in specific cells only and not be able to modify anything else. With worksheet protection, you can make only ...

Driver updates for most hardware devices in Windows are automatically downloaded and installed through Windows Update. Windows Update updates drivers for various hardware including network adapters, printers, scanners, and video cards. Drivers updated through Windows Update are normally recent and up to date. However, drivers can also be updated through Device Manager. Drivers updated through ...