You can repair some apps and programs if they're not running correctly. Note that you won't see repair, change, or modify options for all apps and programs.

Learn how to play different type of CDs and DVDs in Windows Media Player.

Sign in to account.microsoft.com, then select Order History on your Rewards page.

There are two ways to open Registry Editor in Windows 10: In the search box on the taskbar, type regedit, then select Registry Editor (Desktop app) from the results.

Learn how to install Office 2013 on your PC or Office for Mac 2011.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Hotmail が Outlook.com になりました。 サインインして、Outlook.com、Hotmail、Live、または MSN メール アカウントにアクセスする方法について説明します。

Download the Microsoft 365 Access Runtime which allows you to run Microsoft 365 Access applications if you don't have the desktop version of Microsoft 365 Access and need to use an application built to run with Access 2010 or later.

Get help with signing in, changing passwords, creating and sending mail, deleting mail, creating folders, and more in Outlook on the web.

Learn what you can do if you're not receiving account aign-in verification codes.