From fdc6774ee1e3ed37dd45f2fa29a4719968f32c8c Mon Sep 17 00:00:00 2001 From: Leah Anivitti Date: Tue, 20 Jan 2026 19:30:49 +0000 Subject: [PATCH] Add 'How to troubleshoot performance issues in Outlook' --- ...ubleshoot-performance-issues-in-Outlook.md | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 How-to-troubleshoot-performance-issues-in-Outlook.md diff --git a/How-to-troubleshoot-performance-issues-in-Outlook.md b/How-to-troubleshoot-performance-issues-in-Outlook.md new file mode 100644 index 0000000..638cf42 --- /dev/null +++ b/How-to-troubleshoot-performance-issues-in-Outlook.md @@ -0,0 +1,19 @@ +To work around the issue, you will need to end all Office processes that are running and disable the presence features. Restart the Outlook application and check if the issue persists. Outlook not opening on Windows 10 Further, start the application again to check if the error has been fixed. If you are still experiencing issues after trying both of these solutions, contact the EIT Service Desk. The software provides options to split the resultant PST file. + +Learn how to get more out of your connection with Outlook.com. We've streamlined search to make it easier than ever to find what you're looking for. The new Outlook Attachment Preview feature lets you see your pictures and files without leaving your inbox. + +If it does not, proceed to the next solution. If the Outlook issue "outlook keeps crashing Windows 10" persists. You can proceed with the methods on this list. Once PSTs start climbing past 2 GB, things get shaky. Outlook slows down, crashes randomly, or fails to load entirely. Users often Outlook not opening on Windows 10 turn to Microsoft’s ScanPST tool, but it struggles with large files and doesn’t always finish the job. + +While doing your work on Outlook stuck on loading profile? It’s a common error encountered by most MS Outlook users. We are here with most legitimate methods to fix this issue before moving ahead to the solution. In this blog, we have discussed different ways how you can fix if your Microsoft Outlook stuck on loading profile. But if the profile is stuck due to the corrupt PST File then the best way to fix is by using the professional tool. + +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 If you’re using an outdated version of Outlook, it can result in slower performance due to a lack of necessary updates and improvements.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. + +I have ran outlook.exe /cleanrules and Outlook will run perfectly (without crashing) all day. But as soon as the user closes outlook and re-launches, without the /cleanrules, outlook will begin crashing again every 30 minutes. This step [Outlook not opening on Windows 10](https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html) creates detailed information about your Outlook configuration and provides solutions for any known issues that are detected. It also gives you the option to upload your results to Microsoft so that a support engineer can review them. Hopefully, now you understand why Outlook keeps crashing and how to fix it. We have mentioned all manual troubleshooting solutions that you can try one by one. + +First, let’s look at the most common reasons the Outlook app is so slow to open and how Clean Email can remedy each one. We’ll then delve into more technical and application-specific causes with recommended solutions. When you have to deal with a slow or unresponsive Outlook, it can be frustrating. Outlook not opening on Windows 10 Whether on Windows, Mac, or mobile, a laggy email client can hinder productivity and disrupt communication. This guide explores why Outlook is so slow to respond across platforms and how Clean Email can help improve inbox management and speed up Outlook. Corruption or inconsistencies in the Outlook data file (PST) can cause Outlook to run slow. + +For more information about when builds are available for their respective channels, go to Update history for Microsoft 365. We're investigating the issue and will update this page when a fix is available. If you're using Outlook 2010, Outlook 2013 or Outlook 2016, uninstall and re-install iCloud to resolve this issue. This issue affects Outlook 2007, Outlook 2010, Outlook 2013, and Outlook 2016. After installing the September Public Update, Outlook 2007 displays mixed languages in the user interface. Follow along with the video below to see how to install our site as a web app on your Outlook not opening on Windows 10 home screen. + +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. + +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. \ No newline at end of file