When you launch the tool you’ll be asked to pick the issue that applies most closely to what you are experiencing. Because this tool is very thorough expect it to take minutes to run, sometimes even longer. In "settings" under Shared experiences it tells me I have a problem and has a "Fix now" button, I click that and an Office 365 login prompt comes up. I put in my user name and 3 maybe 4 other pop-ups briefly appear but it does not log me in.

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Other times, it might be network problems, conflicting versions of Office, or organizational security policies that block the authentication process. Regardless of the root cause, understanding the core steps to troubleshoot and resolve these issues is essential for an efficient, well-run IT environment. For a long time, Outlook required an app password because it didn’t understand multi-factor authentication. Those days are long gone but if you were an early adopter of Microsoft/Office 365 then Outlook might not be enabled for modern authentication.

2 Activation Error Codes and Their Solutions

Then they go back and forth entering corporate in the personal spaces and personal in the corporate spaces hoping for the best. In this article I’m going to highlight some of the scenarios that cause login issues and offer a few solutions and troubleshooting tips. In this comprehensive guide—KB113—we’ll explore the most common causes of Office 365 sign-in and activation issues. We’ll then walk you through a practical, step-by-step troubleshooting methodology. Despite its robust feature set and user-friendly design, it’s not uncommon for end users and IT professionals to encounter sign-in and activation issues. If you or your employees can’t sign in to Office 365, or if the applications repeatedly prompt for activation, productivity can grind to a halt.

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To find the repair tools go to Apps & Features, scroll down Microsoft Office, and click the modify button.I did see in credential that most of the Office 365 apps are using my password from about 5 weeks back, I corrected that and then opened Word then tried to login to it.It’s possible that login prompts are an indication of corruption in the application.Microsoft designed this tool to eliminate calls into its support center and it does a great job at it.First we need to admit that no one loves managing passwords.Clearing cached credentials, running a repair, or using the Microsoft Support and Recovery Assistant (SaRA) can also address common local device issues.

Your results may vary, but I always use Online Repair now. To find the repair tools go to Apps & Features, scroll down Microsoft Office, and click the modify button. Once you give your approval you’ll get the repair options dialog.

How do I fix an Office 365 login error?
Double-Check Username and PasswordMake sure you're using the right username (e.g., username@domain.onmicrosoft.com or username@yourcompany.com).Verify that your password is correct. If you suspect it might be incorrect, attempt a reset using your organization's password reset portal or contact your administrator.

Troubleshooting Specific Scenarios

Which means that after you’ve enabled MFA, Outlook will start repeatedly prompting for credentials. Many IT people then created an app password for Outlook to use. Modern authentication is safer and won’t go corrupt on you as an app password might. Rich7359 & @scott-sa-spiceworks I had another user login and the does not exist with that user so I know the issue is profile related.

Next time you log in, it will cache them again for you. Passwords have been around for centuries and people have been losing them for that long too. Even the Romans used encryption to try to protect their passwords. I can open any Office 2016 app installed on my computer but I am unable to link/login to my Office 365 account on my primary computer. I have a service spare that I tested with and I am able to login to Office 365 without any issue. I have done a number of searches and found related issues but none of those fixes have worked.

Brandon Herring I still have one more outdoor signs for business install available on my office profile, thanks for asking. This is getting more than a little annoying as no one else in the office seems to be having the issue.