Upgrade to Microsoft Office 365 sync problems and login fixes 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. The folder may have been deleted or the server where the folder is stored may be unavailable. To access the filtering options faster, add them to your Quick Access Toolbar.

• 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.
• 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.
• If you typically use an Outlook.com account for email, this issue can occur if there are multiple aliases on the account and the 3rd party email address is the primary alias.
• Many users encounter startup freezes, profile loading loops, and crashes following major Windows patches or Office updates.
• Installing any important, recommended, and optional updates can often correct problems by replacing out-of-date files and fixing vulnerabilities.
• Following the above steps—from safe mode diagnostics to repairing data files—will restore functionality in most cases.

Outlook Known issues in October 2020 updates

After installing the September Public Update, Outlook 2007 displays mixed languages in the user interface. If you are having problems with Outlook, diagnose Office activation conflicts there are a few things we can help with to get you back to sending and receiving your email. Find solutions to common problems or get help from a support agent. Please install the Windows 10 Fall Creators Update to fix this issue.

Outlook known issues in the January 2019 updates

Auto-archive, sending and receiving a very large attachment, or running Fix Outlook and Office 365 Errors 2025 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. 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.

Troubleshoot Outlook for Windows issues

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 March 2025 updates

Stay updated, back up regularly, and enjoy uninterrupted productivity in your Outlook workspace. Online Repair reinstalls Outlook components while preserving your data, resolving DLL and registry mismatches that prevent startup. This process checks for structural issues and automatically fixes them. Occasionally, classic Outlook tries to run a process in the background.

Outlook issues after connecting Outlook to Outlook.com

The issues documented in this section have been reported after installing the recent updates listed below. We're investigating the issues and will update this page when a fix is available. In the meantime, please use the workarounds suggested for each issue. If you manually type in the secondary connected account email address in the "From" field, the email is sent as "On behalf of" your primary Outlook.com account. 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.