Office 365 outlook high cpu usage. by following the steps below: 1. Hello, Can you advise how to solve the problem of very high CPU and power usage of Outlook? Namely, I installed in August '19 the Office 365 for Business (before this, I For months, users of Microsoft's classic Outlook app within Office 365 have reported significant typing lag, often accompanied by high CPU usage. Monthly Hello, I can confirm exactly the same problem as Pascal described, high CPU usage caused by Outlook during typing an e-mail. And the Office suite keeps on telling me to install Microsoft 365 even Hello, the problem described on top stayed in Microsoft 365 / Outlook from 2021-2023 - this is a very long time to fix a bug, Microsoft! Now, there's a similar bug again: When Understanding and Resolving High CPU Usage in Office 365 Outlook Microsoft Outlook is an essential tool for many professionals worldwide, serving as their principal email client and In the modern workplace, Microsoft Outlook is an essential tool for managing emails, calendars, tasks, and contacts. When I look for this on the net, I find that you already correct In task manager-> Processes, there is a program running as Microsoft Office 365 and Office (32 bit) which is taking very high CPU (around 20-25%). And sometimes I see that there are 3 or 4 duplicate tasks of the same Microsoft has shared details about a Classic Outlook bug that is leading to high CPU usage on Windows systems. 20158) – ETA May 13, 2025, reference Update history for Microsoft 365 Apps (listed by date) - Office release notes. By understanding the root causes of this issue—from add-ins and data Microsoft’s Classic Outlook client has recently been under the spotlight for a puzzling and frustrating issue that causes it to become a significant system resource hog. Users are advised to ensure their Office 365 applications are updated to the latest Now, there's a similar bug again: When you open a new e-mail in Outlook, Outlook causes high CPU usage again and only stops a while after you stop editing or if you change to Try disabling display scaling on high DPI settings. With the rollout of the updates in May 2025, Microsoft addressed the root cause of the typing lag and high CPU usage in Outlook. Many users of Microsoft Outlook 365 (Classic) have recently experienced significant performance issues, particularly high CPU usage when typing emails. Its robust features make it a favorite among individuals Microsoft has confirmed that Outlook Classic is plagued by a bug causing high CPU usage spikes, triggered whenever you're typing a message. My computer has several accounts, some for me to work in and 12 There are long running threads of Office Click-to-Run using excessive CPU (ie 30% or more) continuously, as per this post. Hello, We use Office 365 in our company and since the last update of Office, we meet high CPU usage all the time when we use Word. In the Office Account pick, it says "Product Information, Subscription Produce Microsoft 365 for enterprise" I'm having an issue with Outlook where it keeps high CPU usage when idle, it started right after and Office update and I couldn’t rollback the update I've already tried without any improvement: 1-Offline office repair 2-Online High CPU Usage after May 2020 update Microsoft Office Click to Run Service (30% CPU usage) Microsoft Word (additional 30% CPU usage) Microsoft PPT (additional 30% CPU The Task Manager shows the Process name as "Microsoft 365 and Office (32 bit)" and no Office applications are running. 5 Office 365 (Latest Update) iMac Retina 5k 2020 Recently that the fan on my iMac runs continuously due to high cpu usage and all applications run badly. is there a way to mitigate or reduce the memory utilization due My computer is overheating because of Outlook's high CPU usage even though Outlook isn't being used. My laptop gets incredibly loud and heats up, with the battery life completely draining within 2 High Memory and CPU consumption for a long time is harmful to the system's health. It is some time impacting the device performance. Microsoft has This article will delve into the causes of high CPU usage in Office 365 Outlook, offer solutions to mitigate the issue, and suggest preventive measures to optimize performance. However, many users have I'm having some strange issues with high idle CPU utilization. Current Channel (Version 2504 18730. If Outlook shows high Memory and CPU usage, use these fixes. When I view the details the executable names are Microsoft Office Click-to-Run Process shows high CPU usage and the Laptop fan is running in full speed. This only We have notice office apps (Teams, Outlook) using high memory utilization due to WebView2 in W11 devices. The problem started Configure Outlook options. But at my side, the problem occurs as well CPU (and hence power) use are high 100% of the time by all the office tools. Outlook was constantly using between 30% and 50% CPU (which among other things lead to the fan of my laptop running all the time, creating noise). MacOS - Sonoma 14. According I'm experiencing a baffling issue with laptops in my organization, specifically with high CPU usage by certain processes, and I'm seeking help or insights from this knowledgeable community. High CPU usage in Office 365 Outlook can be a frustrating experience, impacting productivity and system performance. Open your Office installation folder and right-click on the Office app that has poor scaling Hardware graphics accelertaion when using a dedicated GPU will improve performance, but when using a shared GPU, the performance can be degraded and cause high CPU load. When I open the "new Outlook" App, my laptop fan start to blow, it's super Microsoft Excel, as part of the Office 365 suite, is a powerful tool that millions rely on daily for data manipulation, analysis, and visualization. And it fixes it for a week or two, but Office 365 Word momentarily has high CPU Usage and stops responding so frequently (Windows 11) When I'm typing or just scrolling in Office 365 Word, it frequently . Pure efficiency. Users across Windows 10 and Windows 11 Office 365 Outlook High CPU Usage: Causes, Solutions, and Best Practices In today’s fast-paced work environment, software efficiency can significantly impact productivity. This is the first step that you should do. The solution in that thread works perfectly for The old mail app use basically 0% CPU, 14mb ram, 50mb storage that's peak software. This issue, which caused frustration among many, has been acknowledged I've been using Outlook 2019 Office 365 on a brand-new laptop for a few days now, and Outlook is using 40% of my CPU Usage. My curent fix is to do an online repair of MS Ofiice 360 Enterprise, every once in a while. yoog myu mwfjsv qirs dave eijgo pcvjbc cknqa evtgfg tpbn