Update 'Classic Outlook not responding, stuck at "Processing," stopped working, or freezes'

Classic-Outlook-not-responding%2C-stuck-at-%22Processing%2C%22-stopped-working%2C-or-freezes.md

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+Ashila is a passionate researcher and troubleshooting Outlook startup issues writer specializing in diverse technologies. She also explores topics related to startups and entrepreneurship. With a keen interest in industrial growth and technical innovations, Ashila leverages her expertise to create insightful content that bridges technology and business development.
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+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. You can also add the secondary connected accounts (Gmail, Yahoo, etc.) in Outlook.com as additional accounts in the Outlook profile. The folders storing all of your mail might be struggling to run because of how large they are.
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+Rollout of the fix to all users will take few weeks, so, some users may see the fix applied by the end of September. If you can open the original Outlook Data File, you might be able to recover additional items. The Inbox Repair tool creates a backup file with the same name as the original, but with a .bak extension, and saves it in the troubleshooting Outlook startup issues same folder. There may be items in the backup file that you might be able to recover that the Inbox Repair tool couldn't. If you're using an Exchange email account, you can delete the offline Outlook Data File (.ost) and Outlook will recreate the offline Outlook Data File (.ost) the next time you open Outlook.
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+If Outlook won't open, you can't check your incoming messages or send an outgoing one from your desktop. You cannot create a new email address with @live.com as the domain address. You cannot create a new email with troubleshooting Outlook startup issues @msn.com as the domain address. Existing Hotmail accounts have been permitted to keep their email addresses as well. If Microsoft Outlook is not working, we might be able to help you pinpoint why.
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+None of the events or information was lost in the move to the new calendar. The Family group calendar now appears in the Outlook.com groups area in the left nav on Outlook web troubleshooting Outlook startup issues and in the groups area of the Outlook mobile app. If you access your Outlook.com account through the iOS Mail app, you may be repeatedly asked to enter your username and password. We're aware of an issue where some users see the error message "Your message can't be displayed right now". Microsoft has released a Windows Hotfix file to remove the contacts folder synced by the Teams app. Some Safari users are unable to add email addresses in the To section, or cannot point the cursor in the To field.
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+Users who had been working normally suddenly troubleshooting Outlook startup issues received the CAA2000B error / AADSTS (after the token expired). Most Outlook problems can be resolved with proper troubleshooting and maintenance. Following the fixes above will help you keep your Outlook running smoothly and protect your productivity. We hope this guide proves useful in resolving your Outlook problems efficiently. Outlook accounts can have up to 100GB of storage per mailbox.
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+Then, you can go for options to fix corruption accurately repair PST files and fix Microsoft Outlook issues and errors. 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. If you've already clicked the Accept button in Outlook 2016, you won't be able to re-accept the invitation from another Outlook application. The person who sent you the invitation will need to remove troubleshooting Outlook startup issues your permissions and then send a new invitation.
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+For each message, you can delete it, mark it as unread, flag the message, or pin it to keep it at the top of your folder. There might also be a visual alert that a message is unread, has an attachment, or is flagged. See Working with message folders in Outlook.com to learn more about available folders. To show or hide the Folders list, select Show or Hide the navigation pane. Calendar events can be used for your own personal event, or you can invite others to create an in-person or Teams meeting.
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+We have since reverted to the right data file and the outbound email flow has returned to a normal state. We also released a new rule that corrected the wrong campaign verdict for all impacted customers during the incident. It's a by-product of making more space on your PC, you [troubleshooting Outlook startup issues](https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html) delete things you don't think you need anymore. Then, one day you realize getting rid of that file was a huge mistake. Let's eliminate any feelings of despair regarding a deleted file.
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+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.