This article describes an issue in which you can't logon to an Active Directory Federation Services (ADFS) server from a Windows Store app on a device that's running Windows 8.1, Windows RT 8.1, or Windows Server 2012 R2. An update is available to fix this issue.

All Outlook Data Files (.pst) and Offline Data Files (.ost) are listed along with the name of the account the files are associated with. If you cannot open your Outlook data file or suspect that the file is damaged, use the Inbox Repair tool (scanpst.exe) to repair errors in the file.

Each release of the tool helps detect and remove current, prevalent malicious software. This malicious software includes viruses, worms, and Trojan horses. Microsoft uses several metrics to determine the prevalence of a malicious software family and the damage that can be associated with it.

Under Ways to prove who you are, you’ll see the options to change or remove/add security info for each section. When changing this security info, you’re asked to verify your identity via text, email, your Microsoft Authenticator app, or a verification code from your mobile app.

If you think that your Microsoft account has been hacked, we recommend that you reset your password right away. It's a good idea to choose a password that you don't use elsewhere. To change your password, go to the Security section at: Microsoft account.

Press and hold (or right-click) on the app, then select Uninstall. Uninstall in Settings. Select Start > Settings > Apps > Apps & features . Find the app you want to remove, select More > Uninstall. Note: Some apps can't be uninstalled from the Settings app right now.

If you are having issues installing or updating Gaming Services on your PC, or if you are noticing that the Xbox app for PC is launching with missing content, you may want to download and run the Gaming Services Repair Tool for PC.

Microsoft ended support for Windows Server 2003 on July 14, 2015. This change has affected your software updates and security options. Learn what this means for you and how to stay protected. Describes how to reset the Hosts file back to the default.

PC Health Check app brings you up to date info on your Windows device health, helping you take action to improve your device performance and troubleshoot performance problems.

Refunds for digital games include Microsoft Store digital game offers, Xbox apps (excluding movies and TV apps), digital gaming bundle offers, digital game durable content, and some digital game consumable content, whether made available through the Xbox console, on your PC, or on your mobile device.