After updating Office, you may experience a brief flashing window every hour, which triggers the OfficeBackgroundHandlerRegistration task to start running. In this case, sign in to the Microsoft 365 portal by using your administrator credentials, and then select service health to determine whether other customers are experiencing the same issue. If other customers are experiencing the issue, the issue should end when the service-interrupting event is resolved. If you’d like to share any feedback about this article, please let us know.
Pressing Alt+Tab will help you switch from window to window and help you see what dialog boxes might be stopping Outlook from steps to fix Outlook not opening responding. These troubleshooting techniques apply to Outlook 2016 and 2011 for Mac. The navigation pane, which typically displays your Inbox, Sent Items, and other folders on the left sidebar, can sometimes become corrupted. A simple reset often resolves this and allows Outlook to open correctly. Sometimes, extra tools, ‘add-ins’ in Outlook, can make things tricky. They’re like helpful accessories, but sometimes they can cause trouble.
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The SysCurve tool, in particular, stands out for its ability to repair corrupt PST files efficiently, offering an accessible solution for both technical and non-technical users. Its compatibility with older versions of Outlook and its user-friendly interface make it a versatile option for various PST repair needs. A safe approach to repair Outlook data files involves initially trying manual methods such as exporting data to a new PST file. This method can often resolve issues without any data loss. Additionally, if these manual techniques are insufficient, you can use tools like the Outlook PST Repair Tool to repair PST files. These tools are specifically designed to address more complex issues while preserving your data.
The app might refuse steps to fix Outlook not opening to launch or crash at the splash screen. Sometimes, antivirus real-time scanning can slow Outlook down. Configure your antivirus software to exclude Outlook files or processes from real-time scans to avoid interference. The good news is that Outlook has a built-in tool to scan for corrupted files. You can also make PST files a smaller size that won't corrupt as easily. The issue might be difficult to identify if you have multiple accounts and a long history with Office 365, Exchange, and Outlook.
However, before that, you must figure out the real cause of the issue. Later, go for the best solution that suits the cause of the Outlook issue. Additionally, if the issue causes PST file corruption, use the suggested software for better results. However, we came across many users who are still struggling with this Outlook issue. They still wonder ‘Why is Outlook constantly not responding? ’ So, it is possible that your PST file will get corrupted and you can lose all important data.
Solutions to Troubleshoot 'Out of Memory or System Resources' ErrorCheck Resource Usage. ...Restart and Update Outlook. ...Optimize System Resources for Outlook. ...Find and Remove Faulty Add-ins from Outlook. ...Increase the Size of the Memory Heap. ...Rebuild the OST File.Apr 7, 2025
This is one of the classic example where Microsoft rolling out updates that has not been fully tested yet and causing headache for IT professionals. The Microsoft technician was very frank that the new Shared Calendar Improvements are steps to fix Outlook not opening a mess right now. We are testing the GPO and intend to roll it out to everyone next week.
If creating a new profile solves your issue, you can return to the Show Profiles dialog and delete your old profile. If you try to delete or move a large number of messages at once, Outlook can appear to freeze, but really, it's working behind the scenes. If Outlook is performing some operation on hundreds or thousands of messages at once, it might appear to be stuck. Give Outlook a few minutes to finish the process and it should start to work again. If Outlook isn't stuck at a screen that says "Processing," or this didn't resolve your issue, continue to the steps below. Use the classic Outlook startup troubleshooter to diagnose and fix several common classic Outlook for Windows issues for you.
Creating a steps to fix Outlook not opening new Outlook profile may resolve some performance issues. Items moved into new folders will still be located when searching a mailbox. Outlook forwards meeting invitations to other attendees without anyone actually sending an update or forwarding an invite.
Check your settings to see if you've got the "always prompt for password" feature enabled. It could be as simple as an out-of-date version of Outlook's software. Once an update has been run on your system, the bug may be rectified. Outlook has a bug where it repeatedly prompts you for your steps to fix Outlook not opening password, even after you've logged in. This slows down productivity and quite frankly is just a total nuisance.