Battery Life: Lowering your refresh rate can save battery power by reducing the amount of energy your display consumes.This can be useful when you are using a laptop or tablet and want to extend your battery life.

Website notifications appear in the lower right corner of your screen and are also displayed in the notification center.When notifications are turned on for a website, they will still appear even if Microsoft Edge is closed.

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

About digital signatures and certificates in Office, and buying a digital certificate from a certificate authority or create your own.

Last updated: November 2024. For previous versions, please see the archives here. Our Approach to Search. We recognize that in our technology-driven world, search engines are in many ways the gateway to the internet and the primary way people find the content they are looking for amongst the trillions of ever-changing webpages available online.

Limited emergency calling Skype is not a replacement for your telephone and has limited emergency calling capabilities depending on your country.

Windows Hello is a more personal and secure way to sign in to your Windows device. Instead of using a password, with Windows Hello you can sign in using facial recognition, fingerprint, or a PIN.

How to enable TPM. If you need to enable TPM, these settings are managed via the UEFI BIOS (PC firmware) and vary based on your device. You can access these settings by choosing: Settings > Update & Security > Recovery > Restart now. From the next screen, choose Troubleshoot > Advanced options > UEFI Firmware Settings > Restart to make the changes.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

查找有关 Windows 操作系统的帮助和操作方法文章。 获取对 Windows 的支持，并了解安装、更新、隐私、安全等方面的信息。