"干净启动"通过启动最少的驱动程序和启动程序集来启动 Windows，以便确定后台程序是否干扰游戏或程序。 这类似于 在安全模式下启动 Windows，但可让你更好地控制哪些服务和程序在启动时运行，以帮助你隔离问题的原因。 如何执行干净启动

If your cloud storage and mailbox are not full, and you can't send or receive email, or can't connect to Outlook.com, check these common causes: If you can't send or receive email, check your account: update your password if it's been changed recently. Your account might also be temporarily blocked because we noticed some unusual sign-in activity.

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Note: The steps to install the 2019, 2016, or 2013 versions of Office Professional Plus, Office Standard, or a stand-alone app such as Word or Project might be different if you got Microsoft 365 through one of the following: Microsoft Workplace Discount Program (formerly known as Home Use Program): If you bought Microsoft 365 for personal use through your company, see Install Office through ...

To create the installation media, here's what you'll need: A PC with a reliable internet connection. The download time will vary, depending on your internet connection.

Tips: While signing in, select Yes at the "Stay signed in?" prompt if you want to go straight to your mailbox next time (not recommended for shared computers). Alternatively, check the "Don't show this again" box and select No to be prompted for your password each time.. If you can't sign in, or have forgotten your username or password, use our sign-in troubleshooter.

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If you still don't see an option to install Microsoft 365 on the Microsoft 365 Software page, it's possible your admin hasn't assigned a license to you. Find out if you have a license to install Microsoft 365. If you're a student or teacher and your institution didn't give you a license, find out if you're eligible to Get Microsoft 365 for free.

Tips: While signing in, select Yes at the "Stay signed in?" prompt if you want to go straight to your mailbox next time (not recommended for shared computers). Alternatively, check the "Don't show this again" box and select No to be prompted for your password each time.. If you can't sign in, or have forgotten your username or password, use our sign-in troubleshooter.

How to redeem a gift card, Xbox download code or token. Both Microsoft and Xbox gift cards and download codes and tokens work the same way: once redeemed to your Microsoft account, you can spend your balance at Microsoft Store online, on Windows or Xbox, and you can get downloads for the latest apps, games, movies, TV shows, and Surface, Xbox, and accessories.