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Add Fixes or workarounds for recent issues in classic Outlook for Windows

Jannie Trethowan 2025-12-04 08:15:45 +08:00
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Content<br>
If you have a large number of items in any single folder, you may experience performance issues during certain operations. For more information, see Outlook performance issues when there are too many items or folders in a cached mode .ost [work offline mode stuck](https://body-positivity.org/groups/status-bar-has-an-upper-limit-of-3-99-gb-outlook-microsoft-learn/) or .pst file. To create a user profile, you must first create a user account. To determine whether this problem is caused by a corrupted user profile, create a user profile to see whether the problem still occurs when you use the new profile. To keep up with new viruses as they're created, antivirus software vendors periodically provide updates that you can download from the Internet.
Some Web-based Outlook add-ins don't work in when using on premise Exchange 2013
To learn more about how to send us feedback, please see How do I give feedback on Microsoft Office. To access the filtering options faster, add them to your Quick Access Toolbar. Currently, you can't use Outlook on Windows to edit calendars that are shared with your Outlook.com account, even if you've reconnected your Outlook.com account to Outlook. We're working to make it possible to edit shared calendars in Outlook 2016 for Windows. Upgrade to Microsoft Edge to take advantage of the latest features, [work offline mode stuck](https://restless-rice-b2a2.ganpig.workers.dev/cfdownload/https://www.kenpoguy.com/phasickombatives/profile.php?id=3070561) security updates, and technical support. If you use the cloud-based Microsoft 365 on a PC or Mac, the automated Support and Recovery Assistant tool can diagnose and fix many issues, including Microsoft Outlook not starting.
Outlook Known issues in September 2024 updates
Download the latest updates by visiting your antivirus software vendor's website.When you start Windows normally, several applications and services start automatically and then run in the background.Here are some common fixes that should work when Outlook doesn't open, whether you're using Windows or a Mac.If so, wait a short time (usually two or three minutes) to see if Outlook starts working again.It contains settings for desktop backgrounds, screen savers, sound settings, and other features.
The loading of unregistered MAPI services has been disabled by default to make Outlook more secure. To edit a shared calendar, go online to your own Outlook.com calendar, open Calendar for Windows 10, or use a mobile device. Maybe you've added a new program to your computer that doesn't get along with Outlook, or your system has a virus. Regardless of the specific cause, there are several key troubleshooting fixes to try that might help.
Outlook known issues in the June 2018 updates
This occurs because custom form script is now disabled by default. You must have at least three user accounts on the computer to complete these steps. You can automatically repair your Office program files to resolve such problems as Outlook freezing or not responding.
Outlook Known issues in November 2023 updates
For more information about when builds are available for their respective channels, go to Update history for Microsoft 365. We're investigating the issue and will update this page when a fix is available.
Outlook known issues in the December 2018 updates
If your antivirus software isn't up-to-date, Outlook may not function correctly. Outlook stores certain data, such as email signatures and the spelling checker dictionary, in the AppData folder. If the network is performing slowly, Outlook must wait for read and write operations to the AppData directory to finish. To manage your mailbox by reducing the size of the Outlook data file, see Reduce the size of Outlook Data Files (.pst and .ost). Although add-ins can enhance your user experience, they can occasionally interfere or conflict with Outlook. There is currently no option to revert to the prior behavior, but we would love to hear your feedback to [FixTechGuide login issue guide](https://zelexi.com/the-heart-of-the-internet-26/) help us with future designs.
Step 2 - Make sure that Outlook isn't in use by another process
Occasionally, classic Outlook tries to run a process in the background. Auto-archive, sending and receiving a very large attachment, or running some of the other mailbox tools can all be done in the background. Check the status bar at the bottom of the screen to see if another process is running. If so, wait a short time (usually two or three minutes) to see if Outlook starts working again. If you can't choose any of the menu options, type inside an email message, calendar event, or contact, Outlook may have frozen. There are three steps you can take to try to get Outlook working again.
Outlook Known Issues in November 2021 updates
If you have email messages in an email program, you must import your email messages and addresses to the new user profile before you delete the old profile. If everything is working correctly, you can now delete the old profile. In System Configuration, if you select a check box, the related service or startup program runs when you restart the computer. If the check box is cleared, the service or startup program doesn't run when you restart the computer.