You can start Outlook in safe mode, disable your steps to fix Outlook not opening add-ins, and then try to open Outlook normally. 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. Note that you can quickly tell how your mail is currently sorted, by the presence of a small triangle on the field headers.

Fortunately, with the right Outlook troubleshooting strategies, many of the most common Outlook problems are quite straightforward to troubleshoot. Below, you will see some of the most common issues that users run into, and what the most efficient way to troubleshoot Outlook is. You might need to set Windows Update to automatically steps to fix Outlook not opening download and install recommended updates.

Now, select from any of the given options, including Quick Repair and Online Repair. Find the Microsoft 365 app and right-click on it to see the available options. Outlook being a great platform, still encounters some glitches and errors like Outlook 365 not working on Windows 10. This error leads to less productivity, especially if Outlook 365 is your default email client. The only way to resolve this issue is to repair Outlook 365 in Windows 10.

In many scenarios, antiviruses become incompatible with other applications. The same applies to the situation whenever Outlook stuck on loading profile. While these Microsoft accounts work in other Microsoft products (e.g. OneDrive, Windows, Xbox), they are non-functional when visiting Outlook.com. Outlook.com (the web version of Outlook) and Outlook apps require a 1st party alias (Outlook/Hotmail/Live/MSN) to send and receive email, use calendar, etc. 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 steps to fix Outlook not opening tools can all be done in the background.

We have recently received some reports of users who are experiencing issues with subscribing to .ics/ical calendars. To help you get rid of these duplicates, we have released a fix which will automatically clean up your contact list. This fix will clean up duplicate contacts for end users starting August 9, 2023.

Two methods, manual and professional will be explained here along with their stepwise working procedure to fix Outlook data files or Personal Storage Table (PST). The manual solution will uncover the step by step guide on the Inbox steps to fix Outlook not opening Repair Tool (ScanPST.exe). In addition, it turns into leading Outlook errors, which might affect overall productivity and efficiency and can increase downtime. Therefore, users should put some effective solutions into action to deal with inaccessible or damaged PST files as soon as they encounter Outlook issues. OST files in Outlook 365 allow users to access their mailbox data even without an internet connection.

The "Outlook is Running Slow" message can make you wonder why it’s not working well. But when we look into why this happens, we find various reasons that together make Outlook slow. We love reading your suggestions on new features and feedback about how you use our products! To learn more about how to share your feedback, see How do I give feedback on Microsoft Office. 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.

Rollout of the fix to all users will take few weeks, so, some users may see the fix applied by the end of September. Add an Outlook.com alias to your account and send email to Gmail users using that alias. For more information, go to Add or remove an email alias in Outlook.com. If you're still unable to send or receive email, read how to Fix Outlook.com email sync issues. Some customers may experience a delay when trying to create a new email address, or alias, for their Outlook.com account. If you're having problems sending steps to fix Outlook not opening or receiving email, read how to Fix Outlook.com email sync issues.

Last but not least, you can try to repair Outlook PST files using the ScanPST tool or using a specialized Outlook repair tool. If your Outlook data file is damaged, you’ll need this tool. It’s built into Outlook and helps repair PST and OST files. Also, you can recover permanently deleted items and attachments from Outlook with the help steps to fix Outlook not opening of this Outlook repair tool.

But the good part is, you can fix most of these problems with simple steps. TrustedTech is a Microsoft solutions Partner in the following areas. You can start Outlook in safe mode, disable your add-ins, and then try to open Outlook normally.

Microsoft created a support and recovery assistant. This program is designed to run some tests, provide a diagnostic, and help you fix common issues with your Outlook account. If calling people on the phone is not your preferred option, you can contact Outlook’s customer service via a live chat. Outlook Safe Mode support refers to the resources and assistance Microsoft provides for users who encounter issues while using Outlook in Safe Mode. Overall, Outlook webmail support provides a steps to fix Outlook not opening comprehensive system to help you troubleshoot problems and effectively use the web-based version of Outlook for managing your email and schedule.