The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track.

Follow these steps to automatically diagnose and repair Windows security problems by turning on UAC, DEP protection, Windows Firewall, and other Windows security options and features. Select the Download button on this page.

See the following sections for instructions on changing your email account password for several major email providers. If your email account provider isn't listed, contact your admin or the email provider's help desk.

The Microsoft .NET Framework 4.8 is a highly compatible, in-place update to the Microsoft .NET Framework 4, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1 and 4.7.2. The offline package can be used in situations in which the web installer cannot be used because of lack of Internet connectivity.

Windows 10. In the search box on the taskbar, type device manager, then select Device Manager from the menu.

Fix Outlook.com email sync issues, including sign-in problems. Troubleshoot Outlook.com email issues that trigger a "delivery failed" error. Troubleshoot known issues with shared calendars in Outlook. Reconnect my Outlook 2016 or Outlook 2013 account to Outlook.com.

If you're trying to add your Outlook.com account to Outlook or another mail app, you might need the POP, IMAP, or SMTP settings. You can find them below or by viewing them in your Outlook.com settings.

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

Get help for the account you use with Microsoft. Find how to set up Microsoft account, protect it, and use it to manage your services and subscriptions.