Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.

Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.

Lists various error messages that you may receive when you send or receive email messages in Outlook or Outlook Express. Describes possible causes and resolutions.

Not enough memory available to complete this operation. Quit one or more applications to increase available memory, and then try again.

Learn how to redeem a gift card, code, or Office product key and spend your balance at Microsoft Store online, on Windows, or Xbox.

If you’re working on a Windows PC and want the apps and content from another device to show on your PC screen, you’ll want to consider mirroring that device‘s screen or projecting it to your PC.

Learn how to use the PC Health Check app to help you improve your device performance.

How to use the IF function (combined with the AND, OR, and NOT functions) in Excel to make logical comparisons between given values.

Get help and learn how to use Skype with Microsoft's official support page.

Learn different ways to locate your BitLocker recovery key in Windows, and learn about how BitLocker might have been activated on your system.