From 73d264c9c32ff2843ee49d4227ca7f90e8f2ca82 Mon Sep 17 00:00:00 2001 From: Dan Guilfoyle Date: Tue, 2 Dec 2025 08:01:00 +0800 Subject: [PATCH] Add Fixes or workarounds for recent issues in classic Outlook for Windows --- ...t-issues-in-classic-Outlook-for-Windows.md | 41 +++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 Fixes-or-workarounds-for-recent-issues-in-classic-Outlook-for-Windows.md diff --git a/Fixes-or-workarounds-for-recent-issues-in-classic-Outlook-for-Windows.md b/Fixes-or-workarounds-for-recent-issues-in-classic-Outlook-for-Windows.md new file mode 100644 index 0000000..31d8d71 --- /dev/null +++ b/Fixes-or-workarounds-for-recent-issues-in-classic-Outlook-for-Windows.md @@ -0,0 +1,41 @@ +Content
+ + + +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. + + + +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. Note that you can quickly tell how your mail is currently sorted, by the presence of a small triangle on the field headers. Outlook 2016 freezes when you try to preview an Excel file that's attached to an email. This issue affects all Outlook versions on Windows 7, Windows 8, Windows 10. + +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 + + + +The loading of unregistered MAPI services has been disabled by default to make Outlook more secure. 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. We've run into some issues with the 'New' Outlook this week after 6+ months of usage that other may run into. + +Some Web-based Outlook add-ins don't work in when using on premise Exchange 2013 + +Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.Fortunately, most of these errors stem from configuration conflicts, corrupted data files, or outdated components that can be fixed with a few targeted steps.FixTechGuide’s free email diagnostic tools automate error detection by scanning your configuration files, registry entries, and mail protocols.To access the calendar shared with your Microsoft 365 for business account, you'll need to accept the invitation from Outlook on the web, iOS, or Android.The issues documented in this section have been reported after installing the recent updates listed below.Most startup failures arise from minor configuration mismatches or outdated components.By the end, you’ll know exactly how to restore your Outlook and prevent future errors. + +My computer (running Windows 11 Pro) forced an update about two weeks ago. Since the update, my Outlook will not return to "new" Outlook, it deleted my email signature, and is incredibly delayed in getting messages. I am opening the "classic" Outlook app on my computer because the one labeled new seems to not actually be a functioning app (no icon, nothing happens when I click on it). When the Outlook app opens, I can see the 'Try [reset cached Exchange mode](https://gitlab.innive.com/marcelaallred6) the new Outlook' toggle. The toggle just turns back off and the app does nothing different. + +Outlook known issues in the June 2017 security updates + +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 [online Outlook email repair utility](https://educhoice.co.uk/user/profile/43081) set a registry key that will cause Outlook to stop using the local Windows Search service. When this registry key is set, Outlook will use its own built-in search engine. The built-in search will display the message below to indicate it is not using the Windows Search service. + + + +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. + +Repair Outlook OST File Not Working in Office 365 – Complete Fix ( + +This ensures Outlook and Windows run the same DLL versions and registry references. Third-party add-ins are among the most common culprits for [Exchange connectivity diagnostic](https://gitlab.innive.com/lidaramsden277/fixtechguide-windows-update-outlook-fix1981/-/issues/1) Outlook not opening properly. Safe Mode allows you to start Outlook with all extensions temporarily disabled. \ No newline at end of file