Serious problems might occur if you modify the registry incorrectly. Before you modify it, back up the registry for restoration in case problems occur. The settings in the Send/Receive Group windows let you customize the synchronization rate of the new group. The software can be deployed in virtual, hosted cloud, on-premises, or hybrid network environments. The company sells its software and services directly and through a network of global channel partners. Before using this tool, we recommend making a backup copy of your PST file in case any errors or file corruptions occur to the original file.
Use the People page to find, view, create, and edit contacts and contact lists. To learn more about managing contacts in Outlook.com, go to Create, view, and edit contacts and contact lists in Outlook.com. At the top of the message list, you can choose how you want to view the list. There might also be a visual alert that a message is unread, has an https://fixoutlookhelp.wordpress.com/2025/10/29/repair-outlook-ost-and-pst-files-2025-guide/ attachment, or is flagged. To change your Mail settings so your inbox looks and behaves the way you want it to, see Personalize your new Mail experience in Outlook.com.
Once the Outlook update process is complete, reopen the Outlook application. Again, check if Microsoft Outlook crashes when opening. If not, the cause of the error is something else. “My Outlook is crashing!” This ais a common problem that we may encounter while working with Microsoft Outlook? Many users frequently report issues with Microsoft Outlook crashing, regardless of whether the installation is new or old. One common issue with Outlook is that it occasionally closes unexpectedly.
It can automatically diagnose issues, troubleshoot, and fix problems with Outlook. A more general version that can also fix Office, Microsoft 365, and other Outlook problems can be found here. Add a contact to your Favorites by selecting a contact in the list, and then selecting Add to favorites. Keep track of appointments, meetings, or any other event from anywhere. Add, edit, or delete events using daily, weekly, or monthly views. For more information about working with calendars in Outlook.com, go to Using the calendar in Outlook.com.
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. If so, wait a short time (usually two or three minutes) to see if Outlook starts working again.
To find the item with the attachment, scan the list of items in the thread. You can give feedback by selecting Help from the top menu, then Feedback. Post questions, follow discussions and share your knowledge in the Outlook.com Community. If your mailbox is full, we won’t be able to reply to your request.
The most common problem users encounter when accessing their email accounts in Outlook is “Outlook 365 crashing”. In most cases, the issue is caused by incompatible or faulty add-ins. This article discusses some methods for resolving Outlook 365 keep crashing issues. Hopefully, one of these solutions worked for you, and Outlook is now stable and operating normally.
Get Help has troubleshooters for classic Outlook for Windows you can run for many common scenarios, such as Outlook startup or profile setup problems. These often help resolve issues without the need to contact support. New features like Files and attachment previews let you see your pictures and files without leaving your inbox. Right-click a task for a list of options, or select a task to see and manage its details. Shows contacts or contact lists depending on what you selected in the left pane.
After the update, reopen Outlook to see if it can work correctly. The free manual solutions to fix Microsoft Outlook keeps shutting down ends here. Now, let us move into the solutions to fix the issue of MS Outlook. The only other change to the Exchange Server was a certificate update for IIS. This is a standard DigiCert wildcard cert that we have replaced every year with no issues.
The error message states that there are some issues with Outlook PST files. This error tends to pop-out when you attempt to launch Outlook. Outlook https://fixoutlookhelp.wordpress.com/2025/10/29/repair-outlook-ost-and-pst-files-2025-guide/ simply denies the existence of PST file because the file is corrupt and cannot be accessed anymore. Another reason can be Outlook is set to read-only mode, which stops Outlook from accessing the PST file. To resolve this issue, switch Outlook from read-only mode and try moving your PST file from external drive to hard drive.
To adjust the number of days of data that are synced for shared folders, add the following registry values. These keys don’t clean up older Calendar content that was already downloaded. However, this method can be effective if you’re willing to clear offline items and resync your Calendar (instead of bulk deleting old items). If you already have the Calendar in the profile, you have to clear the Offline Items after you set the registry keys and restart Outlook. To fix performance issues that affect your Calendar, try the following methods.