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.

For a closer look at its functionalities, users can download and try its free trial version in their system. If you are dealing with a broken Outlook, then it doesn’t always mean you need to call tech support or start over from scratch. With the right steps, you can repair Outlook manually and get back to work in no time. You should start with the easy fixes, like repairing Office or turning off add-ins.

If creating a new profile solves your issue, you can return to the Show Profiles dialog and delete your old profile. 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. Give Outlook a few minutes to finish the process and it should start to work again. If Outlook isn't stuck at a screen that says "Processing," or this didn't resolve your issue, continue to the steps below. Use the classic Outlook startup troubleshooter to diagnose and fix several common classic Outlook for Windows issues for you.

Microsoft has released a Windows Hotfix file to remove the contacts folder synced by the Teams app. 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. Rollout of the fix to all users will take few weeks, so, some users may see the fix applied by the end of September. Some Safari users are unable to add email addresses in the To section, or cannot point the cursor in the To field.

One of the failed sign-in windows showed a long string under a field labeled Microsoft Information Protection API. Running that value through the Entra admin portal revealed what we needed. At that point, the focus shifted to what was happening during authentication. The answer came from a closer look at the Microsoft Entra sign-in logs and a hidden dependency that I wasn’t aware of.

To sum up, we explored several methods to fix "Outlook won’t open" errors. Whether it’s a profile issue, a corrupted PST file, or faulty add-ins, the methods above can help you get Outlook running again. When Microsoft Outlook refuses to open, it’s incredibly frustrating. This issue often stems from common culprits like a corrupted user profile, a damaged data file (PST or OST), or even a minor conflict within its settings or add-ins.

An actual online repair will take a little longer, unpins office apps from the taskbar, and updates if there is an update available (which there is for these devices). This repair is happening quicker, is not unpinning and is not updating. I verified by manually doing an online repair on one device and it did everything it should have. If you’re experiencing any issues with Outlook on your Windows 10 system, there’s no need to Outlook not opening on Windows 10 panic. The first thing you should try is to fix the basic Outlook issues.

To disable this feature, you'll need to edit the Windows Registry. It's incredibly common to have Outlook crash because of a corrupted PST file. The indexing feature is essentially a catalogue that is built from all of the information you receive in your email. Your searches refer to this catalogue, so that you don't have to check every single folder and email for a term.

Sometimes, when you’re using Outlook, it might ask for your confirmation before doing something. For example, if you try dismissing all reminders, Outlook might show a message asking, ‘Are you sure you Outlook not opening on Windows 10 want to do that? ’ You’ll need to choose an option for Outlook to continue. To troubleshoot the "Outlook Won’t Open in Windows 10" error, try these solutions.

It is therefore crucial that these Outlook errors are resolved as soon as possible. This guide discusses methods to quickly fix the Outlook not opening issue in Windows 10. To repair the PST files, you can use the in-built tool ScanPST, which is provided by Microsoft, but it repairs minor corruptions and files up to 2GB only. So you can opt for an automated solution – Kernel for Outlook PST Repair.

In this guide, we will learn how to repair Outlook 365 in Windows 10/11 with the best possible ways. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.

However, for severely corrupted PST files, it’s Outlook not opening on Windows 10 recommended to use a third-party repair tool. In this regard, we recommend Kernel for Outlook PST repair tool to save your precious time. Problems with the device, connection to power, network issues, viruses or malware, oversized files, and improper shutdowns all cause the PST file to act up. The issue might be difficult to identify if you have multiple accounts and a long history with Office 365, Exchange, and Outlook.