Outlook Stuck in Sign-in Loop, Even After Password Change
Changing your Microsoft account password is usually enough to restore access to Microsoft Outlook, but sometimes things do not go as planned. Instead of signing in successfully, Outlook may keep asking for your password over and over again. Even after entering the correct credentials, the sign-in window keeps reappearing, creating an endless sign-in loop. This issue can affect Outlook for Windows, Microsoft 365, Outlook 2021, Outlook 2019, and even older supported versions.
The problem is usually caused by outdated saved credentials, corrupted account information, synchronization issues, damaged Outlook profiles, or authentication settings that no longer match your updated password.
Now, let’s learn the fixes!
Outlook Stuck in Sign-in Loop, Even After Password Change
If Outlook keeps asking for your password even after changing it, the problem is often caused by outdated saved credentials, a corrupted Outlook profile, cached authentication tokens, Office activation problems, or Windows Credential Manager storing old login information. Clearing saved credentials, updating your account information, repairing Microsoft Office, and creating a new Outlook profile are some of the most effective ways to resolve the issue.
Let’s explore the fixes in detail!
Step 1: Confirm That Your New Password Works
Before making any changes to Outlook, make sure your new password actually works with your Microsoft account. Open your preferred web browser and sign in to your Microsoft account through Outlook on the web. If you can log in successfully, it confirms that your password has been updated correctly and your account itself is working properly. If the website also rejects your password, you may need to reset it again before troubleshooting Outlook.
Once you have confirmed that your account is accessible online, close every Outlook window completely. Even if Outlook appears to be closed, check the Task Manager to ensure there are no Outlook processes still running in the background. If Outlook continues running silently, it may continue using old authentication information, which can prevent the updated password from being recognized.
After closing Outlook completely, restart your computer and launch Outlook again. Sometimes Windows simply needs a fresh start to reload the latest authentication information after a password change.
Step 2: Remove Old Saved Credentials from Windows Credential Manager
Windows stores account credentials so you do not have to enter your password every time you open Outlook. However, after changing your password, these saved credentials may become outdated, causing Outlook to repeatedly request your sign in information.
Open the Control Panel and select Credential Manager. Next, open Windows Credentials and carefully look for any entries related to Microsoft Office, Outlook, Microsoft 365, Exchange, or your Microsoft email account. These entries may still contain your previous password.
Delete the outdated Outlook-related credentials one by one. Do not worry because removing these entries does not delete your emails or your Outlook account. It simply forces Outlook to ask for your latest password the next time it starts.
Restart Outlook after removing the old credentials. Enter your updated password when prompted and select the option to remember your credentials if it appears. In many cases, this single step resolves the endless sign-in loop.
Step 3: Update Your Outlook Account Password
Sometimes Outlook continues using cached authentication information even after Windows has accepted your new password. Updating the account information inside Outlook helps synchronize everything correctly.
Open Outlook and go to File. Select Account Settings, then choose Account Settings again. Highlight your email account and select Repair if the option is available. Follow the prompts and enter your new password when requested.
If the repair option does not appear, remove the affected account from Outlook and add it back using your updated password. This refreshes the account settings without affecting the emails that remain stored on the mail server.
Once the account has been added again, allow Outlook several minutes to synchronize your mailbox completely. Large mailboxes may require additional time before the synchronization process finishes.
Step 4: Repair Microsoft Office
Corrupted Office files can interfere with Outlook authentication and prevent successful sign-in. If Outlook continues asking for your password, repairing the Office installation is a good next step.
Open Control Panel, select Programs and Features, locate Microsoft Office or Microsoft 365, then choose Change. Select Quick Repair first because it is faster and does not require an internet connection. Wait until Windows completes the repair process.
Restart your computer after the repair finishes and open Outlook again. If the problem remains, repeat the process and choose Online Repair instead. This option downloads fresh Office files from Microsoft and replaces damaged components that may be causing authentication issues.
Although the online repair takes longer, it often resolves persistent Outlook sign-in problems that a quick repair cannot fix.
Step 5: Create a New Outlook Profile
If your Outlook profile becomes damaged, it may continue using corrupted settings even after your password has been updated. Creating a fresh Outlook profile often fixes sign-in problems without affecting your mailbox on the server.
Close Outlook completely before continuing. Open the Control Panel and select Mail. Choose Show Profiles, then select Add to create a new profile. Give it a recognizable name and follow the setup wizard using your email address and newly updated password.
After Outlook finishes configuring the account, select the option to use the new profile as the default profile. Open Outlook and allow it to synchronize your mailbox.
Since the new profile starts with fresh configuration files, many authentication issues disappear immediately. If everything works correctly, you can continue using the new profile and remove the old one later if you no longer need it.
Step 6: Check Your Microsoft Account Security Settings
If your account recently experienced suspicious sign-in attempts or security changes, Microsoft may require additional verification before Outlook can authenticate successfully.
Visit your Microsoft account security page and review any recent security alerts or unusual activity. Complete any requested identity verification steps. If Two-Factor Authentication is enabled, make sure you approve the sign-in request using your authentication method.
If you recently changed your recovery information or security settings, Microsoft may temporarily delay certain account changes. Waiting a short period before attempting another Outlook sign-in may allow the security update to finish processing.
Once all security checks have been completed, restart Outlook and try signing in again with your current password.
Step 7: Update Outlook and Windows
Running outdated software can sometimes create compatibility problems with Microsoft’s authentication services. Keeping both Outlook and Windows fully updated helps ensure they communicate properly with Microsoft servers.
Open any Office application, select File, then Account, and check for available Office updates. Install any pending updates and restart the application afterward.
Next, open Windows Settings, select Windows Update, and install every available update. Some authentication improvements and security fixes are included in regular Windows updates.
After your computer finishes updating and restarts, launch Outlook again and verify whether the sign-in loop has disappeared.
Useful Tips From My Side
Whenever you change your Microsoft account password, completely close Outlook before signing in again so it can load your updated credentials correctly.
Keeping Microsoft Office and Windows fully updated helps prevent authentication-related issues from appearing in the future.
If you use antivirus software with email protection, temporarily disabling the email scanning feature can help determine whether it is interfering with Outlook authentication.
It is also a good idea to avoid saving multiple versions of the same Microsoft account in Windows because duplicate credentials can confuse Outlook during the sign-in process.
Finally, restarting your computer after major account changes is a simple habit that often resolves temporary authentication problems before more advanced troubleshooting becomes necessary.
FAQs
Why does Outlook keep asking for my password after I changed it?
This usually happens because Outlook or Windows is still using outdated saved credentials, a corrupted Outlook profile, or cached authentication tokens that have not been refreshed.
Will deleting credentials from Credential Manager remove my emails?
No. Removing saved credentials only deletes stored login information. Your emails, contacts, and calendar data remain safe.
Is creating a new Outlook profile safe?
Yes. Creating a new Outlook profile is a common troubleshooting method. Your mailbox remains on the mail server and will synchronize again after the new profile is configured.
What if Outlook still cannot sign in after trying every fix?
If none of the solutions work, verify that your Microsoft account is not locked and check whether your organization’s administrator has applied new authentication policies. You may also need to contact Microsoft Support or your email administrator for further assistance.
Can outdated Office versions cause sign-in problems?
Yes. Older Office versions may not fully support modern authentication methods, making Outlook repeatedly request your password.
Summary
An Outlook sign-in loop after changing your password can be frustrating, but it is usually caused by outdated credentials, cached authentication data, damaged Outlook profiles, or Office-related issues rather than an incorrect password. By confirming that your new password works online, removing old credentials, updating your Outlook account settings, repairing Microsoft Office, creating a new Outlook profile, checking your account security, and installing the latest Windows and Office updates, you can resolve the problem in most situations.
Following these troubleshooting steps carefully will help Outlook authenticate correctly and allow you to access your emails without repeated password prompts.