Xbox Error Code 0x800488FC — What It Means & How to Fix It

What Does This Error Mean?

Error 0x800488FC means your Xbox cannot sign in to your Microsoft account. This can be a temporary network issue or a problem with your account credentials. Most cases are fixed with a simple sign-out and sign-in again.

Affected Models

Xbox One
Xbox One S
Xbox One X
Xbox Series S
Xbox Series X

Common Causes

Your Microsoft account password was recently changed on another device
Xbox Live is experiencing a service outage
Your Xbox's internet connection is unstable or blocked
Your Microsoft account has an unusual sign-in flag triggered by a security check
Your Xbox's system time is incorrect, causing authentication to fail

How to Fix It

Check Xbox Live status at xbox.com/status. If sign-in services are listed as having issues, wait for Microsoft to resolve them — this is not something you can fix yourself.

Xbox Live outages are a common cause of 0x800488FC.
Remove your account from the Xbox and add it back. Go to Settings > Account > Remove Accounts, remove your profile, then sign back in using your Microsoft email and password.

This forces a fresh authentication which often resolves stale credential issues.
Reset your Microsoft account password. Go to account.microsoft.com from a phone or computer, sign in, and change your password. Then sign in to your Xbox with the new password.

If you recently changed your password on another device, your Xbox still has the old one stored.
Do a full power cycle on your Xbox. Hold the power button for 10 seconds until it fully shuts down, unplug the power cable for 2 minutes, then restart and try signing in.

This clears cached authentication tokens that may be causing the error.
Check your Xbox's date and time settings. Go to Settings > System > Language and Location, scroll to Date and Time, and make sure it is set to sync automatically.

A clock that is off by more than a few minutes can cause security certificate errors during sign-in.

When to Call a Professional

If you cannot sign in after all steps, contact Xbox Support at support.xbox.com. There may be a security hold or billing issue on your Microsoft account. You can also try signing in at account.microsoft.com from a web browser to diagnose account issues.

Frequently Asked Questions

Can I play my games offline if I cannot sign in?

Yes — if the Xbox is set as your Home Xbox, you can play your games without signing in. You can set your Home Xbox under Settings > General > Personalization > My Home Xbox. Digital games and Game Pass titles require either a sign-in or the Home Xbox setting to play.

Will I lose anything if I remove and re-add my account?

No data is deleted when you remove an account. Game saves synced to the cloud are stored on Microsoft's servers. Removing and re-adding simply re-authenticates your profile on the console.

What if I forgot my Microsoft account password?

Go to account.microsoft.com from any browser and click Forgot Password. Microsoft will send a verification code to your recovery email or phone. Once you reset it, sign in to Xbox with the new password.