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Jesenia McQuay 2025-12-04 06:33:42 +08:00
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After updating Office, you may experience a brief flashing window every hour, which triggers the OfficeBackgroundHandlerRegistration task to start running. 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. MAPI does not validate that a provider's DLL that it is requested to load is registered correctly in MapiSVC.inf or even that it comes from the local machine. This can be exploited by creating a file together with an OLE object in such a way to cause MAPI to load a DLL from a network share when the OLE object is activated.
My Outlook 365 won't open after a Windows update yesterday.
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 June 2022 updates
The only other change to the Exchange Server was a certificate update for IIS. This is a standard DigiCert wildcard cert that we have replaced every year with no issues. If you can't open Outlook, or Outlook disappears or crashes, one of your add-ins may be to blame or you may need to update Outlook. Right-click the folder, and then click Properties to check your permissions for the folder. See the folder owner or your administrator to change your permissions.
Outlook Known Issues in June 2021 updates
You might need to set Windows Update to automatically download and install recommended updates. Installing any important, recommended, and optional updates can often correct problems by replacing out-of-date files and fixing vulnerabilities. To install the latest Windows and Office updates, click the link below. Please install the latest updates on your phone to resolve the issue.
Some Web-based Outlook add-ins don't work in when using on premise Exchange 2013
The person who sent you the invitation will need to remove your permissions and then send a new invitation.Occasionally, classic Outlook tries to run a process in the background.If your Outlook suddenly stopped opening after a Windows update, don’t panic.If you can't choose any of the menu options, type inside an email message, calendar event, or contact, Outlook may have frozen.If so, wait a short time (usually two or three minutes) to see if Outlook starts working again.It’s harmless and resolves 30% of stuck startup issues according to Microsoft community reports.Until you can install the Windows Update fix release, you can set a registry key that will cause Outlook to stop using the local Windows Search service.My computer (running Windows 11 Pro) forced an update about two weeks ago.
I saw a reply to an issue similar to mine that mentioned going to the Registry Editor and followed [FixTechGuide Windows update Outlook fix](https://app.fluence.africa/forums/users/raulgilchrist/) instructions outlined in that message but nothing changed. By the end, you’ll know exactly how to restore your Outlook and prevent future errors. If your Microsoft Outlook won’t open after a recent Windows update, you’re not alone.
This occurs because custom form script is now disabled by default. For persistent issues, use FixTechGuide’s automated tools to perform deep diagnostics and security checks. Stay updated, back up regularly, and enjoy uninterrupted productivity in your Outlook workspace. Online Repair reinstalls Outlook [FixTechGuide Windows update Outlook fix](https://body-positivity.org/groups/the-heart-of-the-internet-1256617003/) components while preserving your data, resolving DLL and registry mismatches that prevent startup. This process checks for structural issues and automatically fixes them.
Getting Started Is Easy
To edit a shared calendar, go online to your own Outlook.com calendar, open Calendar for Windows 10, or use a mobile device. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. You can start Outlook in safe mode, disable your add-ins, and then try to open Outlook normally. To access the filtering options faster, add them to your Quick Access Toolbar. You may 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.
This ensures Outlook and Windows run the same DLL versions and registry references. Third-party add-ins are among the most common culprits for [guide to Office 365 sign-in errors](https://app.fluence.africa/forums/users/brookm706625/) Outlook not opening properly. Safe Mode allows you to start Outlook with all extensions temporarily disabled.