Skip to content

  • Projects
  • Groups
  • Snippets
  • Help
    • Loading...
    • Help
    • Submit feedback
    • Contribute to GitLab
  • Sign in / Register
T
trusted-outlook-repair-blog1998
  • Project
    • Project
    • Details
    • Activity
    • Cycle Analytics
  • Issues 9
    • Issues 9
    • List
    • Board
    • Labels
    • Milestones
  • Merge Requests 0
    • Merge Requests 0
  • CI / CD
    • CI / CD
    • Pipelines
    • Jobs
    • Schedules
  • Wiki
    • Wiki
  • Snippets
    • Snippets
  • Members
    • Members
  • Collapse sidebar
  • Activity
  • Create a new issue
  • Jobs
  • Issue Boards
  • Gilbert Frodsham
  • trusted-outlook-repair-blog1998
  • Issues
  • #6

Closed
Open
Opened Sep 22, 2025 by Gilbert Frodsham@gilbertt289504
  • Report abuse
  • New issue
Report abuse New issue

I cant start Microsoft Outlook or receive the error Cannot start Microsoft Outlook Cannot open the Outlook Window

If those steps don't work, see Need additional help? There are a number of possible reasons for Outlook to behave this way. We've presented the potential solutions in order from quickest to most time consuming. To manage your mailbox by using the AutoArchive feature, see AutoArchive settings explained. We recommend that you move several items in your larger folders to separate folders, or that you archive those items by using the AutoArchive feature.

While attempting, the damaged program or an out-of-date can cause this error. You can sort out this issue with the help of some common configurational changes. There is currently no option to revert to the prior behavior, but we would love to hear your feedback to help us with future designs. To learn more about how to send us feedback, please see How do I give feedback on Microsoft Office. You may methods to stop Outlook crashing notice that All, Unread , Mentioned and other sort and filtering options, such as By date, and Newest are missing in Outlook above your email list. Please install the Windows 10 Fall Creators Update to fix this issue.

If Outlook is NOT able to start in safe mode, then try the next proposed solution below, entitled Create a new Outlook profile. Starting Outlook in safe mode, which starts Outlook without add-ins loaded, can tell you if an add-in is the source of the problem. Try these troubleshooting steps in the order presented here, from simple to more complicated.

Start classic Outlook in safe modeIn Windows 10, click Start.Type Outlook /safe, in the Search programs and files and then click OK.Close and re-open Outlook.If the issue is resolved, you can keep working, or if you have time, take the following steps to find out what COM Add-in is causing the problem.

Find solutions to common problems or get help from a support agent. Visit the small business help & learning page to learn how you can use Outlook and other Microsoft 365 apps and services in your small business. We love reading your suggestions on new features and feedback about how you use our products! To learn more about how to share your feedback, see How do I give feedback on Microsoft Office.

Use the Microsoft 365 setup troubleshooter to install Microsoft 365, Office 2021, Office 2019, or Office 2016 on your Windows PC. This option could be useful if you constantly have to wait for Outlook to rebuild its data file when you restart. There are multiple ways for you to send and receive email, and multiple versions of Outlook available. If the images in these topics don't match what you see on your screen, you might be using a different version of Outlook. If you can't receive new email messages, there are several troubleshooting steps you can take. If you've successfully sent and received email from classic Outlook before, and now Outlook repeatedly asks you to reenter your password, one of two things may have happened.

This alias will be added to their account as a secondary alias, with the original 3rd party alias will continue to be set up as the primary. Once this step is complete, the user will land in their Outlook inbox and be able to use all Outlook functionality with this new email address. You can also add the secondary connected accounts (Gmail, Yahoo, etc.) in Outlook.com as additional accounts in the Outlook profile. The folders storing all of your mail might be struggling to run because of how large they are.

None of the events or information was lost in the move to the new calendar. The Family group calendar now appears in the Outlook.com groups area in the left nav on Outlook web methods to stop Outlook crashing and in the groups area of the Outlook mobile app. If you access your Outlook.com account through the iOS Mail app, you may be repeatedly asked to enter your username and password. We're aware of an issue where some users see the error message "Your message can't be displayed right now". Microsoft has released a Windows Hotfix file to remove the contacts folder synced by the Teams app. Some Safari users are unable to add email addresses in the To section, or cannot point the cursor in the To field.

We have multiple tools to help you automatically diagnose an issue, troubleshoot, and fix problems with Outlook. TrustedTech is dedicated to being a reliable resource for all software and technology support needs. Our relationship to the Microsoft Partner Network allows us to provide competitive pricing and authentic software and support, all with a much-needed human element. Use the MIcrosoft 365 inventory scan troubleshooter to generate either a normal or full scan report of your computer and installed Microsoft 365 applications. Use the Microsoft 365 sign-in troubleshooter to help resolve sign-in issues encountered with Microsoft 365.

Performance may be decreased if you use the Outlook AutoArchive feature or sync to Outlook with a mobile device. These processes can use a large number of resources. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. If Outlook keeps crashing, you can run the methods to stop Outlook crashing Outlook Diagnostics Tool to scan and fix common issues related to Outlook. Close Outlook and press Window logo + R keys to open a Run dialog box. Select the Include items with the "Do not Auto Archive" checkbox and click ok.

Assignee
Assign to
None
Milestone
None
Assign milestone
Time tracking
None
Due date
None
0
Labels
None
Assign labels
  • View project labels
Reference: gilbertt289504/trusted-outlook-repair-blog1998#6