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Add Why is my Outlook stuck on loading? Microsoft Q&A

Marcia Buring 2026-01-19 18:07:54 +08:00
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Find solutions to common problems or get help from a support agent. Ask a question and find solutions from Support Agents, MVPs, Engineers, and Outlook users. On June 25th, 2019, the Outlook Team made a change to trusted Outlook repair blog the service to fix this issue. If you are still seeing this issue, restart Outlook a couple of times so it can pick up the service change. Remember to re-enable your antivirus once Outlook is working properly.
Until you can install the Windows Update fix release, you can set a registry key that will cause Outlook to stop using the local Windows Search service. When this registry key is set, Outlook will use its own built-in search engine. The built-in search will display the message below to indicate it is not using the Windows Search service. The issues documented in this section have been reported after installing the recent updates listed below. We're investigating the issues and will update this page when a fix is available.
In this case, you’ll have to remove your app’s cache to resolve your issue. Should you decide to remove a profile, back up the data files first. All offline cached content will be deleted when you choose Remove. For more information, see Introduction to Outlook Data Files (.pst and .ost). If your issue with Outlook persists, use the repair tool’s "Online Repair" option to fix your app problems. This option takes longer than the first one and requires an active internet connection to resolve your app issues.
Be aware that if you are connecting to an Exchange Server mailbox, your mailbox or your email messages are already being scanned by antivirus software on the server. For more information, see You may experience application pauses if you have a large Outlook data file. Optionally, if you have a Microsoft Exchange online archive, you can move items to that archive or create retention policies to automatically dispose of older items.
The first step is to check whether the PST file exists in its original location. You can also download the trial tool to try and test the working of the tool before buying the premium edition. If your PST file is stored on a network drive, ensure that the drive is accessible and that you have the necessary permissions. Reconnect to the network or contact your system administrator for assistance.
In this case, you can reset your view settings before opening the trusted Outlook repair blog app. Select your Microsoft Office installation on the list and choose "Change" at the top. In this case, open Outlook in safe mode where your add-ins aren’t loaded and remove any suspicious add-ins. In most cases, Outlook doesn’t tell you why it isn’t opening, which leaves you guessing as to what has caused the issue. Due to underlying system or PST issues, Outlook may crash, freeze, or not function properly. Find solutions to common problems or get help from a support agent.
One such issue is when you are stuck on loading your Outlook profile and the set of folders cannot be opened. It’s too frustrating because you can’t even use the app and find out what’s wrong with it. Here, in this article, we will discuss the solutions to fix Outlook stuck on the loading profile and look at software to repair corrupt PST files. We are here with most legitimate methods to fix this issue before moving ahead to the solution. When you install Outlook, an Inbox repair tool (scanpst.exe) is also installed on your PC. The Inbox repair tool can resolve problems by scanning your Outlook data files, and repairing errors.
The built-in [trusted Outlook repair blog](https://fixoutlookhelp.wordpress.com/2025/10/29/repair-outlook-ost-and-pst-files-2025-guide/) back-off mechanisms in the indexing component of Windows Search or WDS pauses the indexing of Outlook data when the system is under heavy use. The easiest way to let the indexing finish is to leave Outlook running overnight.Additionally, you can reduce performance issues by running Outlook in Cached Exchange Mode. In this mode, Windows Search or WDS searches the local copy of the mailbox instead of the mailbox content on the server. I even reduced mailboxes sizes and that didn't help, I setup a new user (albeit existing PC but new windows profile), and he is having the same issues. If the mailboxes open automatically after removing them and restarting Outlook, they may be auto mapped. This setting can be changed by an Exchange admin by submitting a request via Jira and including the usernames of the client and the usernames of the mailboxes that need to be removed.
Should you decide to remove a profile, back up the data files first. All offline cached content will be deleted when you choose Remove. For more information, see Introduction to Outlook Data Files (.pst and .ost).
If you’re still having problems, you can try resetting your Windows Firewall settings back to default. Once the add-ins are disabled, close Outlook 2016 and restart the application normally to check whether it now opens as normal or not. You can determine if it's corrupted by creating a new profile and changing which profile is used when Outlook starts.