The built-in search will display the message below flush DNS and re-sync Outlook to indicate it is not using the Windows Search service. 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 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.

Troubleshooting Co-Authoring and Collaboration Errors

• Discover Defender and Purview add-ons for enterprise-grade protection at SMB-friendly pricing.
• After installing the September Public Update, Outlook 2007 displays mixed languages in the user interface.
• The person who sent you the invitation will need to remove your permissions and then send a new invitation.
• Find solutions to common problems or get help from a support agent.
• Discover how IT leaders can address key Microsoft Copilot questions on cost, deployment, security, and integration to maximize ROI and adoption.
• 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.
• It is a feature-rich application that allows users to manage multiple email accounts, calendars, contacts, and tasks.
• TrustedTech is dedicated to being a reliable resource for all software and technology support needs.

Check your antivirus software’s settings and ensuring Outlook is listed as a trusted application. The colleagues at Bleeping Computer noticed this update and addressed it in this post. This post also mentions the downgrade to an earlier Microsoft 365 build, which was previously described as a workaround.

Get Expert Help from TrustedTech

This tool has helped IT teams across healthcare, finance, education amongst many others. Whether it’s restoring email from encrypted backups or recovering badly broken PSTs, Stellar gets the job done with minimal fuss. You don't have permission to create an entry in this folder. 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. 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.

Outlook Known issues in April 2023 updates

When built-in tools fall short, professional solutions pick up the slack. Using Cached Exchange Mode in complex environments can lead to painful sync delays. If a user has a large mailbox or lots of folder nesting, syncing might lag or even crash. Let’s look at what causes Outlook to crash, how you can fix it, and a smarter tool that takes a lot of the stress off your plate. Find solutions to common problems or get help from a support agent. The folder may have been deleted or the server where the folder is stored may be unavailable.

Outlook Known Issues in November 2021 updates

Users often turn to Microsoft’s ScanPST tool, but it struggles with large files and doesn’t always finish FixTechGuide fix for stuck folders the job. For issues that are not covered on this page, we have multiple tools to help you automatically diagnose and fix a range of Outlook problems. To edit a shared calendar, go online to your own Outlook.com calendar, open Calendar for Windows 10, or use a mobile device. Read how to Add your Outlook.com account to another mail app.



We're working to make it possible to edit shared calendars in Outlook 2016 for Windows. Not Implemented Error mostly appears in Outlook 2010, 2013, 2016, 2019 and latest Microsoft 365 version. Boost your SMB’s security and compliance with Microsoft 365 Business Premium. Discover Defender and Purview add-ons for enterprise-grade protection at SMB-friendly pricing. In these cases, direct escalation to Microsoft or working with a Microsoft CSP partner, such as recreate Outlook profile step by step TrustedTech, can expedite resolution and minimize downtime. Our licensing engineers can help triage complex problems and ensure you're on the right support path.