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 Advanced Boot Options screen lets you start Windows in advanced troubleshooting modes. You can access the menu by turning on your computer and pressing the F8 key before Windows starts.

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.

如果将幻灯片版式应用于演示文稿中的一张或多张幻灯片，然后通过添加占位符、自定义提示文本或完成一些其他布局更改操作来返回并编辑该布局，则必须将版式重新应用于幻灯片，以便幻灯片遵循更新后的版式。

Note: Microsoft is updating the way we ask for permission to use your voice data to improve Microsoft products that use our speech recognition technology.This may impact the data you see on your privacy dashboard. To learn more about these changes, see How does Microsoft protect my privacy while improving its speech recognition technology?

向每张幻灯片添加演讲者备注可帮助您记住在演示时要讲的内容。

Here are some solutions to common problems with the new Microsoft Edge . If Microsoft Edge keeps crashing. If you can't open Microsoft Edge, or if it opens briefly and then closes, or if you’re unable to open specific webpages, here are some things you can try.

Microsoft 365 for business. If your Microsoft 365 product is one of the following, you have a Microsoft 365 for business product. These products are usually associated with a work or school account, and your Microsoft 365 license (if your subscription has one) came from the organization where you work or go to school.

用高每英寸点数 (dpi) 分辨率进行打印可获得高质量的打印效果，但打印时间可能会更长。 可以将分辨率设置更改为较低的 dpi 设置，具体取决于使用的打印机类型。 如果使用的打印机支持草稿质量打印，则可以指定草稿质量，以便更快地打印。

Outlook won't accept my password. If you've forgotten the password for a Microsoft account, user our sign-in helper to get back into your account.. If you know you’re using the correct password for your email account but Outlook won’t accept it, you might have an email account that requires additional security.