Generally, if you bought a physical copy of Windows, the product key should be on a label or card inside the box that Windows came in. If Windows came preinstalled on your PC, the product key should appear on a sticker on your device. If you’ve lost or can’t find the product key, contact the manufacturer. To ensure your product key is ...

How to open PC Health Check. In Windows, use Search on the taskbar to search for “PC Health Check,” then select it from the list of results. If a PC Health Check update is available, you can quickly install it for the latest version. If you don't have PC Health Check installed, you can install it by going to https://aka.ms ...

Info for Windows Insiders. If you’re an Insider and the current preview build isn’t working for you, select Start > Settings > System > Recovery .Next to Go back , select Go back.This won’t remove your personal files, but it’ll remove recently installed apps and drivers, and change settings back to their defaults.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

To find a specific download, sign in to the Order history page with the Microsoft account you used to make the purchase. Find the software, and then select Product key/Install. Note: If you're having problems installing an app from the Microsoft Store, see Fix problems with apps from Microsoft Store. If you're looking for download and ...

Security. Microsoft will never proactively reach out to you to provide unsolicited PC or technical support. If you receive a phone call claiming to be from Microsoft, or see a pop-up window on your PC with a fake warning message and a phone number to call and get your “issue” fixed, it’s better to be safe and not click any links or ...

Windows Security provides built-in security options to help protect your device from malicious software attacks. To access the features described below, tap the Windows Start button, type windows security, select it from the results, and then select Device security. Notes: What you actually see on the Device security page may vary depending ...

From the next screen, select Troubleshoot > Advanced options > UEFI Firmware Settings > Restart to make changes. To change these settings, you will need to switch the PC boot mode from one enabled as “Legacy” BIOS (also known as “CSM” Mode) to UEFI/BIOS (Unified Extensible Firmware Interface). In some cases, there are options to enable ...

取り消した操作をやり直す. 元に戻した内容をやり直すには、Ctrl キーを押しながら Y キーまたは F4 キーを押します。. (F4 が動作していないように見える場合は、キーボードの F-Lock キー または Fn キー を押してから F4 キーを押すか、クイック アクセス ...

打开截图工具. 可通过四种方法打开截图工具：. 选择“ 开始 ”按钮，输入 截图工具 ，然后从结果中选择“ 截图工具 ”。. 按 Windows 徽标键 + Shift + S 获取静态图像截图。. 按 打印屏幕 ( PrtSc) 获取静态图像截图。. 按 Windows 徽标键 + Shift + R 获取视频截图。.