If Outlook is unresponsive, not opening, or is crashing without any morning you can repair using the tried and tested methods provided here. 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, steps to fix Outlook not opening wait a short time (usually two or three minutes) to see if Outlook starts working again. The steps to access the repair tool vary depending on your operating system.
Some of these accounts still exist as legacies, but it's confusing to sort through what is being phased out and what will remain available. Users feel the platform is not designed intuitively, and there have been a lot of changes to keep up with. To check if Outlook is not loading for everyone you can review the steps to fix Outlook not opening Microsoft Outlook twitter page, or check at a site like downdetector.com or isitdownrightnow.com. The first rule of Outlook troubleshooting is to eliminate the most obvious suspects.
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. Download Remo Repair Outlook (PST) tool & install it on your PCs. Then, just follow the simple steps explained below to fix the PST file after the Outlook crash. Once the PST file is repaired, it can be imported to Outlook and you can access all your steps to fix Outlook not opening Outlook items in the same way as it was originally.
After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. Your PC will still work, steps to fix Outlook not opening but we recommend moving to Windows 11.
Problems with the device, connection to power, network issues, viruses or malware, oversized files, and improper shutdowns all cause the PST file to act up. But little tools that add extra features to Outlook can be the reasons for Outlook corruption. Microsoft has its own tool for automatically scanning and correcting Office when things go awry.
When you have a weak or unstable internet connection, it can cause the app to load slowly, especially on mobile devices. If you’re using an outdated version of Outlook, it can result in slower performance due to a lack of necessary updates and improvements. If a specific version significantly impacts performance, such as CPU you could navigate to the "High CPU usage" diagnostics dashboard and look for the Outlook binary. Some of these data-gathering remote actions are used to populate the live dashboard and should already be scheduled. You can query the results by investigating KPIs from the Live dashboard or from your own investigations. Restart Outlook and check the performance of the Outlook application.
Sometimes you’ll open Outlook and then for no apparent reason, it will freeze or shut itself down. There are quite a few different causes for this, but one of the most common is a defective add-in. Here’s how to disable add-ins in Outlook even when it keeps crashing. 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. Find solutions to common problems or get help from a support agent.
There are three steps you can take to try to get Outlook working again. Along with that, it will be helpful to keep your folder structure safe. 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.
If your Outlook is slow and unstable, it can put a serious drain on your productivity and even elevate the stress level. Microsoft has steps to fix Outlook not opening released Service Pack 2 for Microsoft Office 2007. This release includes significant performance and stability enhancements. The improvement is not guaranteed, it only works in some configurations.
You can run the Inbox Repair Tool (scanpst.exe) to scan your Outlook data files and repair errors. 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. If your Outlook is working fine now, it means add-ins are the culprit. But it is important to identify the specific add-in that was causing trouble. To identify that, check the add-ins one at a time and restart Outlook.
Check your settings to see if you've got the "always prompt for password" feature enabled. 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. You should be able to go to Outlook via a web browser and reset your password.