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

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

Learn how to check if your PC is capable of running TPM 2.0 or how to enable TPM 2.0 to upgrade to Windows 11.

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2

An upgrade differs from an update in that it moves your PC from a previous version of Windows—such as Windows 10—to Windows 11. This FAQ is intended to answer questions about upgrading to Windows 11.

Learn how to troubleshoot Bluetooth problems in Windows. Resolve issues connecting a Bluetooth device or accessory.

Learn about Windows 11 minimum system requirements and how to assess your upgrade eligibility.

Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.

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Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.