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  • Vanita Allcot
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  • #9

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Opened Sep 29, 2025 by Vanita Allcot@vanitaallcot98
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Outlook stops starting up Cloud Computing & SaaS

Our 9 working solutions will help you fix steps to fix Outlook not opening the "Outlook Not Responding" issue and bring your Outlook back to life. The solutions work for Outlook 365, 2021, 2019, 2016, 2013, and earlier versions. If installing the latest updates didn't resolve your issue, move on to the next step. If you try to delete or move a large number of messages at once, Outlook can appear to freeze, but really, it's working behind the scenes. If Outlook is performing some operation on hundreds or thousands of messages at once, it might appear to be stuck.

MacroView software relies on Microsoft WPF to create its modern interface, which in some cases can be graphics steps to fix Outlook not opening display intensive. The MacroView client also passes most write operations via the %appdata% folder, which, when shared, could slow performance. Some security programs continuously scan the entire workstation for threats leading to poor computer responsiveness. Making some minor changes to your virus scanner software can have a positive impact without compromising security. For example, the MacroView program files folder were already scanned on installation and are not updated during general use, so why not create an exclusion path for this location? We have seen greatly improved Outlook startup times when the exclusion path is set.

Then switch to the Processes tab and find all OUTLOOK.EXE items in the list. Click on each OUTLOOK.EXE to select it and hit the "End Process" button. If your user profile or folder is stored on a network drive, Outlook will be slower to respond and might become a hanging outlook problem. I decided to try and fix it by uninstalling and reinstalling. I also removed some old add-ins and an old, inactive account (but Outlook worked no problem steps to fix Outlook not opening with these for a long time).

You can create a new Outlook Data File and drag the items in the Lost and Found folder into the new data file. After you've moved all the items, you can remove the Recovered Personal Folders (.pst) file, including the Lost and Found folder. Once your task is done of locating the ScanPST.exe tool, kindly head to follow the below-given steps to fix Outlook data files (PST). Users now should be mindful of the common causes why users need to fix Outlook data files (PST).

If you're having problems sending or receiving email, read how to Fix Outlook.com email sync issues. The fact of the matter is, Outlook doesn't always cooperate with your computer other applications. If you're tired of different bugs slowing things down or dealing with corrupted files, we are happy to show you how Mailbird can give you a better experience. The bad news is that the ScanPST.exe program doesn't work for severely corrupted files. You'll need to acquire a recovery tool designed for bigger jobs.

Then, you can go for options to fix corruption accurately repair PST files and fix Microsoft Outlook issues and errors. 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 steps to fix Outlook not opening your permissions and then send a new invitation.

However, you can repair the Outlook data file (PST) using ScanPST.exe, also known as the Inbox Repair Tool. You can follow the below solutions to troubleshoot and resolve the Outlook running slow issue. This guide highlights the causes behind these issues and lists troubleshooting methods to resolve the "Outlook is running slow on Windows system" issue. If you are using an Exchange account in Cached mode, compacting your OST file may help improve performance.

You might need to set Windows Update to automatically download and install recommended updates. Installing any important, recommended, and optional updates can often correct problems by replacing out-of-date files and fixing vulnerabilities. To install the latest Windows and Office updates, click the link below. Find solutions to common problems or get help from a support agent. If you've changed your steps to fix Outlook not opening password on the website for your email account, you'll need to change it in new Outlook, too.

I am not quite sure when this started, otherwise I would have rolled back updates and/or removed recently installed apps. I recently uninstalled and reinstalled Office but it only made the issue worse. In System Configuration, if you select a check box, the related service or startup program runs when you restart the computer. If the check box is cleared, the service or startup program doesn't run when you restart the computer.

The Inbox Repair Tool is an in-built utility from Microsoft steps to fix Outlook not opening to overcome the Outlook PST file corruption issues. Users can fix Outlook PST files using this utility, but firstly you need to locate the Inbox Repair Tool (ScanPST.exe) in their system. We are going to share a table below with the default location of this utility for different Outlook versions, like Outlook 2010, 2013, or 2019.

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Reference: vanitaallcot98/2179192#9