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on January 13, 2026
Restart Outlook and try to reproduce the problem. Find solutions to common problems or get help from a support agent. To update your password in Outlook, see Change or update your email password. If you're having problems setting up your email in classic Outlook, we want to help. You can start Outlook in safe mode, disable your add-ins, and then try to open Outlook normally.
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. If you are having issues sending email, this might be due to validation issues with your Microsoft Account. We are aware that some users may not be able to receive email from Gmail accounts.
I hope this will work, please let me know if you still face the issue with Outlook. Large cache is often the cause of corruption, reduce the risks by reducing the size of the cache. If the troubleshooter can't fix your issue, or if you'd like to fix it yourself, see the next section. If Startup Repair detects any of these issues, it will attempt to fix them automatically. If it cannot fix the problem, it will provide a detailed report of the issues it found.
So, we have produced this list of general things to try to resolve your problem in Outlook. To edit a shared calendar, go online to your own Outlook.com calendar, open Calendar for Windows 10, or use a mobile device. If you're still unable to send or receive email, read how to Fix Outlook.com email sync issues. Blocking someone doesn't stop their email from coming to your mailbox, but it does automatically move the message to your Junk Email folder where you can review it (in case it was blocked in error). Some customers may experience a delay when trying to create a new email address, or alias, for their Outlook.com account.
If your antivirus software isn't up-to-date, Outlook may not function correctly. Start the tool and proceed to the email repair section and add files. Start Registry Editor by Pressing the Windows Key+R to open a Run dialog box. Select such processes and hit the "End Task" button one at a time.
We hope that you are now relieved and would like to hear from you if the article has helped you. Drop us a comment below if you have anything to say. If your Outlook is working fine now, it means add-ins are the culprit.
Here, we have compiled a couple of workarounds or quick methods using which the whole Outlook won’t open mess will fly away. Find solutions to common problems or get help from a support agent. If Outlook is NOT able to start in safe mode, then try the next proposed solution below, entitled Create a new Outlook profile.
However, if this doesn’t help, proceed to the next step. Follow the six quick procedures given below to effectively resolve Outlook crashing https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html while starting up. We have tried all things mentioned above (except reconnecting the MS account), but the only solution so far is deleting the users profile. If I run an online repair and reboot her PC it will usually work for a day or two.
One of the most common problems that users often face is the "Outlook keeps not responding" error. This message is commonly displayed when Windows is not able to communicate quickly enough with a program running on your computer. https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html Against this backdrop, a list of possible reasons that might cause Microsoft Outlook freezing or Outlook not responding has been detailed for you below. As your mailbox size increases, more resources are required to open each folder. If you have a large number of items in any single folder, you may experience performance issues during certain operations. For more information, see Outlook performance issues when there are too many items or folders in a cached mode .ost or .pst file.
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. In addition to smart repair and recovery, the tool allows users to save mailbox items to various destinations like Exchange, Office 365, Gmail, etc. 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.
If you don't choose an option on that dialog box, Outlook won't let you do anything else. Pressing Alt+Tab will help you switch from window to window and help you see https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html what dialog boxes might be stopping Outlook from responding. He is an expert Email Forensic, Cloud Computing, and a passionate nerd with over 10 years of experience in technical content writing. He writes about Cloud Migration, Database Recovery, Email Backup, Windows, Mac, and Tech. If you can't choose any of the menu options, type inside an email message, calendar event, or contact, Outlook may have frozen. There are three steps you can take to try to get Outlook working again.