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.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

Notes: You don't need a smartphone to receive a security code. Text messages may come from either "MSFT", a short number, or a mobile number.If you have requested a security code, you can trust the message that arrives.

Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged. (Code 19)

Microsoft Teams Web アプリは、Chrome、Firefox、Internet Explorer を含むほとんどのデスクトップ ブラウザーで動作します。

In the following countries, you have the right to cancel a subscription that has recurring billing with immediate effect and receive a prorated refund as described in the Microsoft Consumer Subscription Prorated Refund Policy:

Alternatively, you can install any website by going to the top corner of the browser and select Settings and more … > Apps > Install this site as an app.

Need help with an Xbox console, an Xbox game, or Xbox network? Find out how to get in touch with us.

Windows share window: Select the Outlook icon in the “Share using” section of the Windows share window to email your files using Outlook directly within the windows share window.It also has a search box. So, you can now search for contacts across Outlook to share a file. The Windows share window also displays 8-10 suggested contacts to quickly share to–including emailing yourself a file.

The steps to access the repair tool vary depending on your operating system. Right-click the Start button (lower-left corner) and select Apps and Features on the pop-up menu.