Add 'Outlook crashes or stops responding when used with Office 365'

Outlook-crashes-or-stops-responding-when-used-with-Office-365.md

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+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 tools can all be done in the background. Check the status bar at the bottom of the screen to see if another process is running.
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+Users who had been working normally suddenly Outlook performance fixes 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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+However, for more severe cases, the SysCurve Outlook PST Repair Tool can provide a more comprehensive solution. If manual methods like SCANPST.EXE fail to repair PST files, it's advisable to use a specialized tool such as the SysCurve PST Repair Tool. This advanced tool is particularly effective for repairing corrupt PST files that are beyond the capabilities of standard repair methods.
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+Often there is the option to add sites to a whitelist, and you can give more permissions to Outlook. The easiest way to find out if this is the problem is to temporarily disable your antivirus software and log in to Outlook as usual. If the prompts go away, you'll know it was the antivirus software. There are a number of reasons this issue arises, which makes it even more infuriating. It could be an issue with a setting on the account, or it could be something external that is blocking normal functions in Outlook.
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+Additionally, it permits users to convert the first 50 items per folder for free, providing a convenient way to test the tool's capabilities before committing to a purchase. The second possibility of receiving this error message is the synchronization issue. If your account has Outlook performance fixes the latest version of Hotmail Outlook connector,still you are receiving this error message,then follow these steps to fix the synchronization issue. Opening Outlook in Safe Mode can help in bypassing issues caused by add-ins, extensions, or a corrupted user profile.
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+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. 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.
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+When you enable this option, calendar actions are sent directly to the server instead of having to be synchronized from local storage. To fix performance issues that affect your Calendar, try the following methods. Also, determine whether any local network issues might be causing the problem. This includes issues that affect your local proxy server, firewall, or Internet service provider. Outlook uses an .ost file only if the Exchange email account is configured to use Cached Exchange Mode.
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+Visit Firefox support to learn how to Disable or remove Add-ons. You can also Sign out manually then close all browser windows. Some users may not be able to empty their Deleted Items folder. Some customers may not be able to insert GIFs from the Insert Emojis and GIFs button. If you can't open Outlook, or Outlook disappears or crashes, one of your add-ins may be to blame or you [Outlook performance fixes](https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html) may need to update Outlook.
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+So, if you're facing issues with your PST file in Outlook, there's no need to worry. Just keep reading, and by the end of this guide, you'll be equipped with the knowledge to efficiently repair Outlook PST files, ensuring that your Outlook functions smoothly. Other than these,there are many other errors that Outlook users face on a day to day basis. Microsoft provides Inbox Repair Tool to fix the damage in the PST Outlook performance fixes file but in severe cases,this tool fails to work,this sometimes leads to corruption in Outlook email data file,i.e. It uses the most advanced technology to manage database and help its users managing their day to day work.
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+Launch the recovery assistant if you've tried everything else and Outlook is still crashing. It also allows you to upload your results to Microsoft for review by a support engineer. Perfectly repair and recover corrupted Outlook PST & OST files. Corrupted or badly set-up Outlook profiles can often cause start-up problems. The app might refuse to launch or crash at the splash screen. The PST files will be repaired and the error will be resolved.
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+Running the /resetnavpane command removes all customizations to the navigation pane. You can determine if it's corrupted by creating a new profile and changing which profile is used when Outlook starts. Starting Outlook in safe mode, which starts Outlook without add-ins loaded, can tell you if an add-in is the source of the problem. Customers using the contact support buttons at the foot of the support pages, or the "email us" links in support Virtual Outlook performance fixes Agent, are unable to open the Help Pane.