Safe mode starts Windows in a basic state, using a limited set of files and drivers. If a problem doesn't happen in safe mode, this means that default settings and basic device drivers aren't causing the issue. Observing Windows in safe mode enables you to narrow down the source of a problem, and can help you troubleshoot problems on your PC.

Learn how to recover files that have been lost, deleted, or accidentally changed.

Download the latest Windows update from the Windows Update page in Settings for your device when it becomes available.

I forgot my password Go to the Recover your account page and follow the prompts. To know more about how to reset your password, see Reset a forgotten Microsoft account password.

Use automatic (Out of Office) replies from Outlook to tell people you won't be responding right away to their email messages.

Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.

如果你遇到声音或音频问题，以下建议可能会有所帮助。 提示按顺序列出，因此请从第一个开始，查看它是否有帮助，如果没有帮助，则继续下一个提示。 了解如何修复 Windows 中的声音或音频问题。

Learn how to activate Office pre-installed on new Windows 10 PCs or with a new product key.

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. When we made the decision on where to set the minimum system requirements for Window 11, we focused on three principles to guide our thinking to help ensure a great user experience:

To download the offline installer for Internet Explorer 11, choose your language and system below.