Learn how to download, install, and use the PC Health Check app to check your device's compatibility with Windows 11 and get tips to improve its performance.

Note: You might not be able to change the power mode when a custom power plan is selected.If you can’t set the power mode in Power & battery settings, open Control Panel, select System and Security > Power Options, then choose a Balanced power plan.

This troubleshooter assists customers whose machines are not yet updated to the latest release, Windows 10 Version 1607. This update will initially be released only to a small set of targeted customers. This set will expand over time. Windows users can start the assistant from this article.

When you install Office 2010, you'll be prompted to enter a 25-character product key that looks something like this: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX

If you want to give access to desktop apps, make sure that Let desktop apps access your microphone is turned on.You can't turn off microphone access for individual apps. Others can't hear me. Try the following solutions:

Items restored from Recoverable Items go to the Deleted Items folder. When you recover items from the Recoverable Items folder, they are moved to the Deleted Items folder. After you recover an item, you can find it in your Deleted Items folder and then you can move it to another folder.. Tips and Troubleshooting

Windows 11 is designed to bring you closer to what you love and is releasing at a time when the PC is playing an even more central role in the way we connect, create and play.

Note: If you use a Manual Table of Contents style, Word won't use your headings to create a table of contents and won't be able to update it automatically. Instead, Word will use placeholder text to create the look of a table of contents so you can manually type each entry into the table of contents.

Select the Start button, search for "OneDrive", and then open it:

注意: 如果连接到电脑的设备（例如显示器、打印机或扫描仪）在从睡眠状态或休眠状态唤醒后不能正确工作，你可能需要先断开设备连接并重新连接或重新启动电脑。还应确保你具有适用于所有设备的最新驱动程序。