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+If it does, the problem is definitely in your antivirus software. In this case, you can either contact its vendor for assistance or simply choose another protection program. When you install Outlook, an Inbox repair tool (scanpst.exe) is also installed on your PC. The Inbox repair tool can resolve problems by scanning your Outlook data files, and repairing errors. To use the Inbox repair tool, exit Outlook, and then follow the steps in Repair Outlook Data Files (.pst and .ost). As your mailbox size increases, more resources are required to open each folder.
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+You'll need to acquire a recovery tool designed for bigger jobs. Search "PST Repair Tool" and you'll find many reputable programs who know how to fix https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html this Outlook issue. Clear unnecessary files from outbox and trash folder to optimize the performance of your Outlook application. Also, try to use the necessary Outlook features to enhance the performance of Outlook not opening on Windows 10, [https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html](https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html), as well as Windows. When you reinstall Outlook, you are removing the current application from your system and then installing it again.
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+User profiles help make sure that your personal preferences are used when you log on to Windows. If your antivirus software includes integration with Outlook, you may experience performance issues. You can disable all Outlook integration within the antivirus software. Or, you can disable any https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html antivirus software add-ins that are installed in Outlook.
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+To effortlessly change your settings so that your inbox looks the way you want it to, see Personalize your new Mail experience in Outlook.com. 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 your permissions and then send a new invitation. You can also add the secondary connected accounts (Gmail, Yahoo, etc.) in Outlook.com as additional accounts in the Outlook profile.
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+In addition to that, it is usually easy to use, even if you’re not a tech-savvy person. Now you’ll have a fresh profile that should work properly if the old one was the problem. If Outlook works fine now, you know one of those add-ins was the problem. So, it will be helpful to find out which one caused the issue. You may not expect this behavior, but the removal of the item is appropriate given the circumstances.
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+If you are using Outlook on a PC, you can check to see what is currently permitted by your computer or try to reset the Credential Manager and remove any old passwords. The Credential Manager is where Windows stores passwords and login information on your computer. It acts as a vault with specific settings and permissions you can adjust. It could be as simple as an out-of-date version of Outlook's software. Once an update has been run on your system, the bug may be rectified.
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+Configure your antivirus software to exclude Outlook files or processes from real-time scans to avoid interference. The AppData folder hosts a lot of files, including bookmarks and cached pages. This might be slowing down or overriding other commands in Outlook.
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+Give Outlook a few minutes to finish the process and it should start to https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html 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. If those steps don't work, see Need additional help?
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+Solutions to Troubleshoot 'Out of Memory or System Resources' ErrorCheck Resource Usage. ...Restart and Update Outlook. ...Optimize System Resources for Outlook. ...Find and Remove Faulty Add-ins from Outlook. ...Increase the Size of the Memory Heap. ...Rebuild the OST File.Apr 7, 2025
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+Users who had been working normally suddenly https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html 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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+Also, if you placed the corrupted PST file in your In-Place Archive folder, it may trigger an automatic repair attempt. But what happens if these files become compromised, and you can no longer access their information? Not all hope is lost, as Microsoft has some built-in tools to help you recover it, which we will show you how to do in this guide.
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+You can also connect to a different Wi-Fi source to see if that resolves the problem. Problematic add-ins can interfere with Outlook’s startup process. Safe Mode loads Outlook with only essential components, allowing you to isolate and disable faulty add-ins. We have tried all things mentioned above (except reconnecting the MS account), but the only solution so far is deleting the users profile.
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