获取 Windows 操作系统的官方支持和帮助信息，以及如何使用 Windows 的指南。

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Symptoms. When the operating system is in high-DPI mode, applications that use the Microsoft Foundation Classes (MFC) library of Microsoft Visual C++ 2013 may behave incorrectly.

If you're moving from a Windows 7 or Windows 8.1 PC to a new Windows device, you'll find that the best way to get apps and games is through Microsoft Store.

Summary. Windows 10, versions 2004 and 20H2 share a common core operating system with an identical set of system files. Therefore, the new features in Windows 10, version 20H2 are included in the latest monthly quality update for Windows 10, version 2004 (released October 13, 2020), but are in an inactive and dormant state.

Microsoft accounts are for personal use, and for accessing services like Outlook.com, Xbox or Skype. Microsoft work and school accounts are for organizations that use Microsoft 365 for business.. Choose your account type, or learn more about the differences.

Export contacts out of other email services. Export iCloud contacts. Export Gmail contacts – See Gmail help. Export Yahoo contacts – See Yahoo import and export help. Export Thunderbird contacts – See Mozilla support.

Note: If you receive a prompt asking whether to allow the app to access your camera (iOS) or to allow the app to take pictures and record video (Android). select Allow so the authenticator app can access your camera to take a picture of the QR code in the next step.If you don't allow the camera, you can still set up the authenticator app as described in Manually add an account to the app.

If you forgot your PIN and need to reset it, you can do so from the Windows sign-in screen. Look below the PIN text box: If you see I forgot my PIN , select it and follow the instructions to reset your PIN.If there are multiple accounts on the device, choose the one you need to reset.

Support for home products. Depending on your product and if it's still in support, Microsoft support experts are available to help you with a broad selection of support options and able to address product and service challenges for a more personalized experience. Chat or receive a call back from a technical support expert: If you have a Microsoft 365 Basic, Microsoft 365 Personal, or Microsoft ...