Windows 7 또는 Windows 8.1의 제품 키 찾기. Windows 7 또는 Windows 8.1을 제거하거나 다시 설치하는 경우 제품 키가 필요합니다.

Use Spreadsheet Compare to compare two workbooks to see the differences between them, line by line. You can see how values, formulas, and formatting differ – line by line, and cell by cell.

Next to Reset this PC, select Reset PC and choose an option:. Keep my files—Reinstalls Windows 11 but keeps your personal files and any apps that came with your PC.This option removes changes you made to settings, as well as apps and drivers you installed.

Learn about Xbox consoles, system requirements, and networking, and get troubleshooting help.

Important: You don't need to remove old security information unless there is an account security risk (e.g. someone else has access to your old mailbox).

The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs.

When you enable an add-in, it adds custom commands and new features to Microsoft 365 programs that help increase your productivity. Because add-ins can be used by attackers to do harm to your computer, you can use add-in security settings to help protect yourself.

Connect with friends, family, and coworkers in Teams. Stay organized and connected with friends, family, and coworkers all from one app. Get started

If you want to track your Microsoft Rewards order after you redeem an award, sign in to the Rewards page with your Microsoft account, select Redeem and then select Order history.On the Order history page, find your order and then look under Status.. Open Rewards dashboard

Plug the USB end of the adapter into a USB charging port on your second display. If your display doesn't have a USB charging port, plug the USB end into any standard USB Type-A charger with 5W (5V/1A).