Check Microsoft’s service status first because an Outlook.com Error 500 can occur when the mailbox service is unavailable; if Outlook is not shown as healthy, wait until service is restored and then sign in again.^1^
What to do
- Open the Microsoft Service Health Status site.
- Check the status for Outlook or Microsoft 365:
- Not healthy: wait for Microsoft to resolve the incident. Similar Error 500 incidents have affected Outlook.com, mobile, and desktop connections simultaneously.^2^
- Healthy: continue below.
- Open a private browser window:
- Edge: … → New InPrivate window
- Chrome: ⋮ → New Incognito window
- Go to Outlook.com, select Sign in, and enter the full Hotmail, Outlook.com, or Live address and Microsoft account password.
- If Error 500 still appears in the private window, use Microsoft’s Sign-in Helper. It checks the account and directs you to the appropriate recovery action.^3^
If the Microsoft account itself signs in but only the mailbox displays Error 500, use Microsoft’s Outlook.com support contact option; that pattern may require Microsoft to examine the mailbox rather than reset the password. The official sign-in page provides a support route specifically for users who cannot enter Outlook.com.^4^
Do not repeatedly change the password if it is accepted and the error occurs only while the mailbox is loading—that is a different symptom from an incorrect-password failure.
References
- How to sign in to Hotmail | Microsoft Support
- Hotmail account login issue : Error 500 : Something went wrong - Microsoft Q&A
- I can't sign in to my Microsoft account | Microsoft Support
- How to sign in to Outlook.com | Microsoft Support