Follow these steps to automatically diagnose and repair Windows security problems by turning on UAC, DEP protection, Windows Firewall, and other Windows security options and features.

若要在 Windows 11 中检查激活状态，请选择“开始 ”按钮，然后选择“设置 > 系统 ” ，然后选择“激活 ”。 。 激活状态将在“激活”旁边列出。 在“设置”中检查激活状态. 你将在“激活”页面上看到以下一条激活状态消息：

Safe mode starts Windows with a minimal set of drivers and services to help troubleshoot issues. If a problem doesn't reappear when you start your PC in safe mode, you can eliminate the default settings and basic device drivers and services as possible causes.

The Snap feature is a great way to improve your productivity by sharing many app windows in a single screen. Different layouts are available with many sizes to choose from, so you can get the most from your favorite apps when you are working on specific tasks.

If the USB recovery drive doesn’t work on your Surface. If you can’t boot from your USB recovery drive or don’t see the Recover from a drive option, you may need to ensure that the boot-from-USB function in the Surface BIOS is enabled or configure the boot order so the USB drive is the first option. For more info, see Boot Surface from a USB device.

Get more out of your email with Outlook.com. We've streamlined search to make it easier than ever to find what you're looking for. New features like Files and attachment previews let you see your pictures and files without leaving your inbox.

Lithium-ion batteries wear out over time, which can result in a battery not holding a charge for as long as it did when it was new. Keeping the battery charged to 100% all the time can cause it to deteriorate faster.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

After you upload photos , OneDrive helps you organize and find them. You can browse your memories fast with our new customizable Gallery, or find a photo based on where it was taken, what is in the photo, and whether it is a video, screenshot, document, and more!

Take a closer look at the macro . You can learn a little about the Visual Basic programming language by editing a macro. To edit a macro, in the Code group on the Developer tab, click Macros, select the name of the macro, and click Edit.This starts the Visual Basic Editor.