If you can't sign into your Microsoft account, most issues can be identified by our sign-in helper tool. The tool will ask you to enter the email address or mobile phone number you're trying to sign in with and check the details you provide.

If your system is asking you for your BitLocker recovery key, the following information may help you locate your recovery key and understand why you're being asked to provide it. Important: Microsoft support is unable to provide, or recreate, a lost BitLocker recovery key.

The Phone Link supports messages sent by Short Message Service (SMS). It also supports Multimedia Messaging Service (MMS) messaging. You can still send your favorite photos and GIFs from your PC.

If you're an administrator, you can find more information in Configure and enable users for SMS-based authentication. If your organization hasn't made SMS sign-in available, you won't see an option for it when registering a phone with your account.

Find out how to submit a request for a refund for a purchase of digital Xbox content.

Detailed information about downloading and using Microsoft Authenticator in China. The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

The cost of sending an SMS from Skype varies according to the country you’re sending it to. You'll need to have some Skype Credit – sending text messages is not covered by our subscriptions. To check the SMS message rates to any destination: Go to our rates page and type the country you want to text into the search box.

Depending on your product and if it's still in support, Microsoft support experts are available to help you with a broad selection of support options and able to address product and service challenges for a more personalized experience.

If you’re unable to read all 25 characters of your digital code, you’ll need to request a replacement code by contacting aka.ms/contactxboxsupport. When you contact support, make sure to provide the proof of purchase, the serial number, and a picture of the damaged code.

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.