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

Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows 8.1, Windows 8, Windows 7 or Windows Vista.

Find out how to submit a request for a refund for a purchase of digital Xbox content.

O Hotmail agora está Outlook.com. Para entrar no Outlook.com e acessar sua conta de email do Outlook, Hotmail, Live ou MSN.

Learn how to enable virtualization through the UEFI (or BIOS) of your PC to run the Windows Subsystem for Android or Windows Subsystem for Linux.

Find out how to boot into safe mode in Windows from Settings, the sign-in screen, and a black or blank screen.

Learn how to use and install mobile apps on your Windows 11 PC with the Windows Subsystem for Android™.

Learn how to open and run DxDiag.exe on Windows to collect device information and troubleshoot DirectX sound and video issues.

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

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