Are you having trouble starting Outlook or receiving "Cannot start Microsoft Outlook. Cannot open the Outlook window" error messages? We can fix the problem for you, or you can use the troubleshooting steps we're providing below to help resolve these startup issues. Here's the deal, when Outlook manages to open, all the files you delete will automatically be recreated. It gets better because you also resolve all the https://fixoutlookhelp.wordpress.com/2025/10/29/repair-outlook-ost-and-pst-files-2025-guide Outlook opening issues. If the in-box Program cannot Fix Outlook Support (https://fixoutlookhelp.wordpress.com/2025/10/29/repair-outlook-ost-and-pst-files-2025-guide) the corrupted Outlook PST files, you can also try Wondershare Repairit for Email.

Shivam is a digital marketer and technical content writer at DRS Solution®, specializing in topics like databases, email recovery, and migration solutions. Try the tool mentioned above because it is effective https://fixoutlookhelp.wordpress.com/2025/10/29/repair-outlook-ost-and-pst-files-2025-guide and convenient, and it scans and fixes errors in both PST and OST files. This tool can be downloaded for free as a trial version.

If it can help in your case, you can purchase it to disable the trial limitations. VCF and EML files can also be imported into other mail https://fixoutlookhelp.wordpress.com/2025/10/29/repair-outlook-ost-and-pst-files-2025-guide clients and programs supporting these files. Recovery Toolbox for Outlook can repair corrupted PST files after the incorrect recovery of ScanPST.exe.

We have mentioned all manual troubleshooting solutions that you can try one by one. However, before that, you must figure out the real cause of the issue. Later, go for the best solution that suits the cause of the Outlook issue. Additionally, if the issue causes PST file corruption, use the suggested software for better results.

To import contacts from other email services, export contacts, or clean up duplicate contacts, select an option from the Manage contacts menu. Add a contact to your Favorites by selecting a contact in the list, and then selecting Add to favorites. When you add someone as a favorite in People, they'll also show up under Favorites in Mail, and the other way around, provided that the contact has an email address. There might also be a visual alert that a message is unread, has an attachment, or is flagged. This is a lightweight app designed to handle multiple accounts and fairly moderate email use. Having trouble connecting to your email from Outlook on your desktop?

The process of reading the OST file and then exporting it to PST takes a significant amount of time. The time it takes to convert OST to PST depends on your computer's performance, particularly the speed of your disk subsystem. In other words, when you remove or modify a message, contact, reminder or meeting, the object is only marked as removed, but is not removed physically and remains in the OST file.

The new version of the object is written to a newly allocated space, but the old version remains in the OST file as well. 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.

An outdated version can also be a cause of why Outlook keeps crashing unexpectedly. The simplest solution often resolves many software-related issues. Similarly, restarting your computer can clear temporary glitches and refresh your system’s https://fixoutlookhelp.wordpress.com/2025/10/29/repair-outlook-ost-and-pst-files-2025-guide resources. This issue has been fixed in the following versions and builds. Please reference Update History for builds by channel, Update history for Microsoft 365 Apps (listed by date). When you open or start a new email, classic Outlook crashes.

To learn more about managing contacts in Outlook.com, go to Create, view, and edit contacts and contact lists in Outlook.com. Each message also has a mini toolbar when you open the message in a new window. 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. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. We have multiple tools to help you automatically diagnose an issue, troubleshoot, and fix problems with Outlook.

It is a powerful and almighty software that can be applied to fix corrupt Outlook https://fixoutlookhelp.wordpress.com/2025/10/29/repair-outlook-ost-and-pst-files-2025-guide PST files in any scenarios. I just have the hourglass that disappears after a minute. After multiple restarts the program will open one time, then reverts. There are other issues, too, that can contribute. Maybe you've added a new program to your computer that doesn't get along with Outlook, or your system has a virus. Regardless of the specific cause, there are several key troubleshooting fixes to try that might help.

Julia Gulevich is an email marketing expert and customer support professional at Geminds LLC with more than 15 years of experience. Author of numerous blog posts, publications, and articles about email marketing and deliverability. The recipient’s server may send a bounce notification explaining why it could not deliver the message. But it doesn’t happen all the time and you may not even know that the recipient didn’t receive your email. This kind of situation can be very frustrating, especially if the content is urgent or vital.