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  • step-by-step-outlook-troubleshooting1993
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Opened Sep 22, 2025 by Lachlan Kidston@lachlankidston
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Common Outlook Error Codes and Troubleshooting Guide Server Management Tips

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. We recommend setting Windows Update to automatically download and install recommended updates. Bug fixes, new features, and performance enhancements are released regularly. There are a number of possible reasons for Outlook to behave this way.

The Family group calendar now appears in the Outlook.com groups area in the left nav on Outlook web and in the groups area of the Outlook mobile app. This fix will also lead to a reduction in the total number of contacts on your contact list. We will ensure that all information is retained and only contacts with matching information in all fields will be cleaned up. To check if you have received the fix, review your contact list to confirm duplicates have been removed.

Running the /resetnavpane command removes all customizations to the navigation pane. It's not uncommon, and you can easily make Microsoft's email and calendar app open with a few simple fixes. We’ll show you what to do on your Windows 11 or Windows 10 PC.

Try accessing other websites to confirm that the issue is specific to Outlook Web. Start typing in the search box to find a contact or contact list. Right-click an existing folder and select Create Outlook not opening on Windows 10 new subfolder. Calendar events can be used for your own personal event, or you can invite others to create an in-person or Teams meeting. To find the item with the attachment, scan the list of items in the thread.

Start Outlook in safe mode to fix "Processing" screenIn Windows 10, choose Start, type Outlook.exe /safe, and press Enter.In Windows 7, choose Start, and in the Search programs and files box, type Outlook /safe, and then press Enter.In Windows 8, on the Apps menu, choose Run, type Outlook /safe, and then choose OK.

If you are using an outdated or over-protective Antivirus software, it may conflict with Microsoft Outlook or any of the Outlook add-ins you have installed. Consequently, the Antivirus program will block the add-ins and stop Outlook from functioning properly. Also, ensure that a reliable and Outlook not opening on Windows 10 trusted vendor provides the Antivirus program you are using.

Our 9 working solutions will help you fix Outlook not opening on Windows 10 the "Outlook Not Responding" issue and bring your Outlook back to life. The solutions work for Outlook 365, 2021, 2019, 2016, 2013, and earlier versions. If installing the latest updates didn't resolve your issue, move on to the next step. If you try to delete or move a large number of messages at once, Outlook can appear to freeze, but really, it's working behind the scenes. If Outlook is performing some operation on hundreds or thousands of messages at once, it might appear to be stuck.

Moreover, this wizard offers an easy-to-understand and self-intuitive Graphical Interface. In conclusion, there is no need to get help from any experts or professionals. This alias will be added to their account as a secondary alias, with the original 3rd party alias will continue to be set up as the primary. Once this step is complete, the user will land in their Outlook inbox and be able to use all Outlook functionality with this new email address. The error message states that there are some issues with Outlook PST files. Outlook simply denies the existence of PST file because the file is corrupt and cannot be accessed anymore.

There are several possible reasons why Outlook behaves this way. Outlook Error 0x a shows an error of server timeout with Outlook’s receive/ send functionality. This error is caused due to connectivity problems and inappropriate settings with the files of Outlook data. Some configurational changes or default features of antivirus can restrict the connectivity of your Outlook to the server. You can either manually disable such features from your antivirus program or temporarily uninstall the antivirus from your machine.

In this case, you can reset your view settings before opening the Outlook not opening on Windows 10 app. Select your Microsoft Office installation on the list and choose "Change" at the top. In this case, open Outlook in safe mode where your add-ins aren’t loaded and remove any suspicious add-ins. In most cases, Outlook doesn’t tell you why it isn’t opening, which leaves you guessing as to what has caused the issue. Due to underlying system or PST issues, Outlook may crash, freeze, or not function properly. Find solutions to common problems or get help from a support agent.

Therefore, to resolve the problem we have to first understand the reasons why Outlook Web is not working. Shows contacts or contact lists depending on what you selected in the left pane. Select Outlook not opening on Windows 10 a contact or contact list to view details in the contact card on the right. You can also select multiple contacts—for example, to send an email to the selected contacts. To edit a shared calendar, go online to your own Outlook.com calendar, open Calendar for Windows 10, or use a mobile device.

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Reference: lachlankidston/step-by-step-outlook-troubleshooting1993#8