I have a 1. Jan 2, 2024 · Why does Microsoft tech support have this MAJOR issue locked "How to fix Very High Power Usage in Task Manager?" while the problem continues to exist!! Locking the issue is not a fix. It's just an email client. Each Windows update comes with performance improvement and bug How To Fix Microsoft Edge High CPU & Memory Usage on Windows PCIf your Edge browser is consuming high memory and CPU usage on Windows 10 or 11 PC then follow Apr 25, 2025 · Microsoft has shared details about a Classic Outlook bug that is leading to high CPU usage on Windows systems. Oct 27, 2025 · Microsoft has acknowledged a serious issue affecting users of classic Outlook for Windows: CPU usage spikes up to 50% just from typing emails. I run the file without releasing VBA, but the result is the same. What it is? Excel 365. Apr 15, 2025 · In a post on Microsoft’s Support blog, the company warns that typing in a recent version of classic Outlook can lead to high CPU usage. Sent network usage from outlook to office 365”. Sep 25, 2019 · Immediately, I noticed a very high CPU (ca 30%) usage and power usage (category "very high"), when using Outlook. exe) prevents energy-saving mode? 🔸 I am actually of this opinion and have been since an update of Outlook for Windows in December 2024. Here are all the effective solutions to try in this situation. are open at the same time, from version 2105… This article describes how to troubleshoot Microsoft Outlook when it's used together with Microsoft 365 and: Outlook stops responding (hangs). Apr 21, 2023 · Most Outlook users complain about slow performance. 5 GB Outlook file, but Outlook runs fast and doesn’t hog all the resources on my computer! Why? Well, it’s because I optimize my Jul 10, 2018 · Hey All I’ve seen a few posts re this on various forums, but nothing so far has resolved my issue. Select Edit power Explore Microsoft products and services and support for your home or business. Outlook crashes when you start it. Symptoms of Outlook 365 Performance Issues Outlook CPU usage is high Animated gif’s / images in emails stutter Switching between emails is slow Common It’s a common question and one that can be difficult to answer without deeper knowledge of the technology and software. Your CPU usage spikes wildly, soaring to 30-50% utilization Mar 14, 2025 · We've got some tips for you to help lower your power usage and get back to using your device without worrying about it draining too much. Regarding " the test framework to accurately measure power consumption for important meeting scenarios such as group video calls and screen sharing", could you please share the test procedure in detail? Thanks for your help! Jul 15, 2022 · A lot of people have reported that while they were looking inside the Task Manager at the processes that are running on their Windows computer, they discovered that the Windows File Explorer is causing high or very high CPU power usage. Outlook stores a Aug 23, 2015 · 1 Now in 2020 and using Outlook 365 I had the very same problem: high CPU utilization from Outlook (according to Process Explorer about 12% of the CPU time was used by Outlook). exe is running. Thank you. Apr 16, 2025 · The Windows behemoth earlier this week confirmed its software goes awry, and said users may experience CPU usage spikes of up to 30 to 50 percent and increased power consumption. More free space on the drive where Outlook is installed can cause various errors. In the Office Account pick, it says "Product Information, Subscription Produce Microsoft 365 for enterprise" Oct 29, 2021 · Outlook 365 Windows desktop app is critical for many of us, so what do you do when it isn’t performing as it needs to? Continue reading to find out how to fix Outlook 365 performance issues. tmp. Reply reply mhhkb • Jan 23, 2025 · Outlook 2016 High CPU Usage: Understanding and Solutions In today’s fast-paced digital world, email clients like Microsoft Outlook play a crucial role in facilitating communication. Apr 15, 2025 · Microsoft warned Windows users of increased CPU usage when typing while using recent versions of the classic Outlook email client. ** Add-ins can som We would like to show you a description here but the site won’t allow us. If the maximum processor state is set to less than 100%, it can limit performance. May 8, 2023 · In this Tutorial I will show you, Fix Outlook High Memory And CPU Usage. Here's how to Fix Outlook high Memory and CPU usage. While Microsoft is cooking up a permanent fix, let’s explore what this Outlook CPU spike bug is, how to work around it, and when to expect the official solution. Feb 25, 2024 · My computer is overheating because of Outlook's high CPU usage even though Outlook isn't being used. Unfortunately, none of the suggested solutions have proven effective. feels like a bug or… In this tutorial we will see that how we can fix High CPU and DISK Usage due to MS Word, Excel, Powerpoint, etc. Download free Microsoft Outlook email and calendar, plus Office Online apps like Word, Excel, and PowerPoint. in fact, I'm already planning to leave Windows. Microsoft’s official admission I read the title as “extremely high. 1. May 12, 2025 · When you write an email in classic Outlook for Windows, you may notice the CPU spikes up to 30 to 50% at some times and increases the power consumption. Aug 6, 2021 · I discovered the power use is actually caused by Outlook. Many users exp Oct 10, 2024 · New outlook feels sluggish, after a few minutes and then after a minute or two a message popup "Restart recommended We detected that your session has unusually high memory". Outlook crashes even though you aren't actively using it. Also my cursor slows down every now and then which I think is due to some performance issue. Even after deleting the account and creating a new Outlook profile, the high CPU usage persists whenever Outlook. Jun 26, 2023 · Is your Task Manager showing "Very High" power usage? Worried about your battery life? Don't fret! This guide offers 4 effective solutions to diagnose and fix the culprit behind the power drain. Everytime I start Outlook it starts with 180MB and it can go to over 2GB and then it crashes because of overload. Here is the list of things to look forward to in the new Outlook for Windows - Microsoft Community Hub. Try steps 1 through 3 in order until the issue is cleared. May 20, 2023 · Wait It Out Click-to-Run typically consumes high processing power when installing Office updates in the background. That’s a blank Excel document, at rest. I would look at the cause of this instead of just the app itself. Let's try fixing it. Apr 27, 2025 · Microsoft's classic Outlook client is currently facing a significant performance issue that has drawn user ire and industry attention. Jun 25, 2025 · Describes performance issues that occur when you use Outlook in a Microsoft 365 environment. Jan 13, 2008 · I know that Outlook is no small app but 20-30% CPU when idle, c'mon! Trying to figure out what was wrong, I made sure I downloaded all the performance patches and I applied Office SP1 but still experienced a high CPU usage. You only making people want to switch to Mac and ChromeOS with this type of bloated software. These issues are mostly related to high CPU load which automatically reflects on noisy fans and high temperatures and the issue with draining of the notebook’s battery. My laptop’s fan was permanently on even if no other program was running. 2024. Process Details: The executable files are named "odt____. Apr 10, 2024 · The memory usage of New Outlook may vary depending on the size of your mailbox and the number of add-ins you have installed. Apr 25, 2025 · Microsoft is addressing a bug in Outlook causing unusual CPU spikes, ensuring smoother performance and better user experience. In this article, we’ll provide an overview of what Microsoft Outlook is, the common causes of high CPU usage, how to tell if Outlook is using too much CPU, and what you can do to reduce Outlook’s CPU usage. Jun 9, 2020 · After the update, it worked properly (i. I could already write and modify my file), but every time I open Word, PowerPoint, or Outlook, the fan of my laptop sounds so loud. I was trying to parse. Performance issues may increase when Outlook is running in Online mode. Partially: I can still scroll the inbox or select another folder in the Aug 28, 2025 · Do you encounter the issue of Discord/Firefox/Google Chrome power usage very high in Task Manager? Learn the causes and solutions. You can observe this if Task Manager is open while you type. Restart and it works again for a few minutes. Nov 11, 2021 · Hello, unfortunately, Outlook (local installation, as part of Microsoft 365) causes high CPU usage for 2-3 minutes each time after opening an attachment when several other applications like Excel, Firefox etc. Dec 11, 2023 · Thank you for your reply. High CPU and Battery usage by Microsoft Teams Jun 18, 2023 · Teams has recently begun consuming all available resources, resulting in a very sluggish user experience. All May 22, 2020 · CPU (and hence power) use are high 100% of the time by all the office tools. Apr 15, 2025 · Microsoft has confirmed a bug in Outlook Classic, where users are experiencing CPU usage spikes, as high as 50%, when simply typing in the application. Why is Excessive CPU Consumption Bad? When your CPU is almost at its maximum capacity, it’s not just a minor nuisance; it’s also a serious safety concern. Lack of Disk Space: Limited disk space can also lead to low system resources. Oct 10, 2024 · Hi, On my work laptop, I'm using New Outlook app 1. Feb 2, 2025 · 👓Outlook for Windows (olk. And no similar problem when using Excel, Word or other Office applications. Outlook does this 24 hours a day 7 days a week unless I close it. 1002. Dec 29, 2020 · Lately, I have heard my computer fan running harder than usual. Apr 17, 2025 · Yet, here we are, witnessing the failings of “Classic” Outlook: cherished for its dependability, famous for its robust features, and—ironically—now famous for industrial-grade CPU consumption while simply writing a message. e. A resolution is provided. However, the indexing of Outlook data occurs only when Outlook is running. I hope this tutorial will be helpful for some Dec 16, 2020 · Microsoft Teams may sometimes use too much CPU power and memory, affecting your computer’s performance. May 5, 2022 · Fortunately, it's very easy to troubleshoot Microsoft Teams' high CPU usage issue. It is some time impacting the device performance. A user in our tenant keeps getting a notification from the new Outlook saying: Restart recommended We detected that your session has unusually high memory consumption. A workaround has been shared. The issue could cause CPU usage to spike by up to 50%, and Oct 25, 2017 · One of the major issues most users have with Outlook is the fact that it gets really slow and eats up a lot of memory on their systems. Apr 15, 2025 · When Typing an Email Turns Your CPU into a Furnace: Unpacking the Latest Outlook Bug Picture this: you’re drafting a simple email in the classic Outlook for Microsoft 365, and suddenly your computer sounds like a jet engine taking off. Process Name: "Microsoft 365 and Office (32 bit)" CPU Usage: Consistent usage of about 15-20% CPU by each of the four identical processes. Jun 8, 2022 · This is not something I have dug into deeply but on my machine and I use Outlook all the time, here are two data points: In Task Manager, App History, (Options, Show all processes checked), my Outlook since 5/15/2022, Network is 8,010 MB. Apr 17, 2025 · Symptoms: Noticeable lag and slow response in Outlook Classic when typing emails CPU usage jumps to 30–50% (visible in Task Manager) Increased power consumption and potential system overheating (reports of CPUs reaching 95°C) Ineffective fixes: Disabling add-ins, graphics acceleration, or spell-check does not resolve the problem Jun 1, 2021 · This issue was reported in both, Windows and macOS. Apr 27, 2025 · Microsoft has recently admitted to a significant performance anomaly affecting its Classic Outlook application on Windows 10 and Windows 11. Here's how to try it. It’s nothing to be worried about. GPU-0 3 D- just will be visible and the power usage change from low to very high. We would like to show you a description here but the site won’t allow us. Users flagged the issue as far back as November 2024, and Microsoft has finally acknowledged that something odd is going on. In this guide, we’ll talk about why Microsoft Teams can sometimes turn into a resource-hogging program. Feb 18, 2022 · This post presents remedies to the problem of Power Usage Very High Windows 10. To understand, if you catch it fast enough, task manager itself shows itself as drawing high power or very high power right when it opens. If I close and restart Outlook, the disk usage is initially a sensible number, but gradually creeps back up to 85% over the course of around 5 minutes. Outlook 365 is an essential tool for many, yet high CPU usage can bring productivity to a standstill. When I open Outlook, it consumes 70w doing nothing. Apr 27, 2025 · Microsoft's classic Outlook client has recently become the center of frustration for many users due to a CPU usage spike bug that causes the application to consume disproportionately high system resources, locking up computers and draining power. However, users have frequently encountered performance issues with Outlook, particularly high CPU usage. Apr 26, 2025 · Many users of Microsoft Outlook 365 (Classic) have recently experienced significant performance issues, particularly high CPU usage when typing emails. When I'm using the app suddenly the CPU and RAM usage increases for the webview2 workers. Apr 15, 2025 · Microsoft has confirmed that a new bug in Classic Outlook is making even typing difficult as it is leading to high CPU usage and system hogging. In Windows Settings, Advanced Network Settings, Data Usage, for the last 30 days my Outlook usage is 15. 6 days ago · Any Windows 11 PC can come to a halt when too many apps are running, but there's a way to limit CPU usage and how much RAM is used thanks to this feature. Oct 10, 2024 · This caused Outlook users to experience high system memory usage, which resulted in poor performance and crashes. What causes such a high power usage in Edge? And is there anything I can… Mar 7, 2024 · We have notice office apps (Teams, Outlook) using high memory utilization due to WebView2 in W11 devices. When someone logs into a quest account, Outlook starts using lots of CPU… Apr 27, 2025 · The recent revelations about classic Outlook's escalating CPU usage have sent ripples of frustration and concern across the Windows user community, particularly among enterprise IT professionals and power users who rely heavily on stable, efficient email clients. If Task Manager reports an unusually high CPU usage for Microsoft Office Click-to-Run, wait it out for about 30 minutes to an hour. Apr 16, 2025 · An annoying Outlook Classic bug is causing CPU usage to spike up to 50% when users are typing in the app in Windows 11. My computer has several accounts, some for me to work in and some for quests. Anything like a video game or any intensive foreground task is going to draw power. Sign in to access your Outlook email account. When that happens and I open Task Manager, I see "Very High" reported in the Power Usage column for Edge. Its CPU usage will return to normal when it completes the update. Feb 9, 2022 · I'd like to run a Teams performance test to check if the new update can fix the high battery consumption issue . Aug 8, 2025 · Learn how to fix high memory usage in New Outlook with easy tips and a reliable solution to improve speed and prevent crashes. What’s Nov 28, 2024 · Do you see high power usage warning in Task Manager? How to fix it to make the power usage more reasonable? See this guide to get answers. exe", where the underscores represent a hex value (like C67A). If it does, it's not supposed to. e change a sheet , jst try copy a cell my application is just freeze and in task manager the CPU show me a high % of usage. · Issue: Outlooks uses more data per month than typical suspected usage This can be 50GB to 2TB+ depending on how big of attachments these end users are trying to send. Feb 3, 2010 · Using Microsoft Outlook 2007, with only 1 email account, and no more than 100 emails in my inbox (though I have many many folders, with emails in them), Outlook can sit around and eventually get up to > 700mb of ram usage. I then checked my task manager then it shows that CPU usage reaches around 80% or even more (both PowerPoint and Word are open) and the power usage is very high. Nov 13, 2025 · Is your Outlook not responding, freezing, or crashing? Learn why Microsoft Outlook stops working and follow practical, step-by-step solutions to fix it. . Shop Microsoft 365, Copilot, Teams, Xbox, Windows, Azure, Surface and more. The Microsoft 365 roadmap provides estimated release dates and descriptions for commercial features. Jun 3, 2025 · This article lists some solutions to fix the Outlook high Memory and CPU usage issue on Windows PC. Word is fine, however, opening Outlook or Excel on this machine results in constant CPU usage (25% each). Nov 20, 2025 · To address the high CPU usage by Microsoft Teams, you can follow these detailed steps: Check Power Settings: Ensure that your device's power settings are configured correctly. Users have reported that during routine tasks such as typing emails, the Classic Outlook client occasionally triggers dramatic spikes in CPU usage that can May 7, 2024 · If Microsoft Outlook keeps giving you the ‘Out of memory or system resources’ error on your Windows PC, use these tips to fix it. This is hugely impactful on climate change. Next steps We're reviewing the root cause to implement measures to prevent similar issues in the future. Microsoft has officially acknowledged this frustrating problem and announced a timeline for a solution. Apr 10, 2025 · Do this to optimize & speed up Outlook Use these 5 tips to optimize and speed up a slow Outlook. I have a Win 10 machine (amongst others, including Win 7) machines that I’ve recently had upgraded to Office 2016 from Office365. Total CPU and memory usage are at or near100%, with May 26, 2020 · Without any huge changes, currently if I do something i. Sep 19, 2024 · Provide guidance and recommendations to Office admins on how to improve the performance of Microsoft 365 Apps on Windows 10. If there are demanding processes running, it can put a strain on the CPU and reduce Outlook’s performance. Get the latest updates on our best-in-class productivity apps and intelligent cloud services. Update Windows High CPU consumption of different applications, including Microsoft Teams, can result from outdated Windows versions. Here are some tips on how to fix Outlook high memory and CPU usage:* **Disable add-ins. I tried many things… Feb 24, 2024 · When working on a document (20-30 pages, nothing spectacular) in Word 365 (the latest possible build and the latest possible update at the end of February 2024) both on Win 10 and Win 11, the CPU usage gets higher than in other apps and power usage suddenly spikes to very high. Therefore, you may have to leave Outlook running overnight to determine whether performance issues are related to the building of your search indexes. These appear even when no Office applications are running. Apr 30, 2025 · This bug causes Outlook to use 30-50% of your CPU, making your system slow and hot. Why Is Outlook Using So Much CPU? In this informative video, we will address the common issue of high CPU usage while using Microsoft Outlook. is there a way to mitigate or reduce the memory utilization due to WebView2. Here's how to check and adjust this setting: Open the Control Panel. Oct 10, 2024 · Starting from ca 2 weeks now, Outlook new consume huge amounts of RAM which always end up with a warning notification to restart the client and/or Outlook freezing. This will improve Outlook performance for sure! Oct 21, 2019 · The high usage is constant and all the time 24/7 (unless Outlook is not running of course). Specifically, Outlook performs slowly when you open email messages, and mail sits for a long time in the Outbox after you send it. When I open the "new Outlook" App, my laptop fan start to blow, it's super annoying. By understanding the reasons behind increased CPU load and implementing the solutions and preventive measures outlined in this article, users can significantly improve their experience with Outlook. Many users have reported that the legacy Outlook version is now turning into a system resource hog, causing CPU usage to spike dramatically—sometimes reaching Jan 17, 2024 · High CPU Usage: High CPU utilization can also be a sign of low system resources. However, Microsoft is constantly working to optimize the performance of New Outlook and reduce its memory usage. The app becomes unresponsive. Rethink productivity, streamline business processes, and protect your business with Microsoft 365. Apr 27, 2025 · Microsoft recently confirmed that its classic Outlook application intermittently suffers from significant CPU usage spikes, with usage soaring as high as 30 to 50 percent during routine operations like typing emails. 0 Today it started to behave abnormally. 0 MB RAM (8GB Ram in total) and I dont know why. Can you confirm it's actually outlook causing this this via task manager? It should have a high cpu usage. Dec 3, 2021 · Dec 03, 2024 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 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 another task. This is because Outlook consumes more memory space and hence it becomes slow when used. I am running the latest M365 version of Outlook. Jun 3, 2022 · Very High power usage by 'system' is causing my laptop to overheat. Get your laptop running efficiently and enjoy longer battery life! Oct 4, 2023 · Outlook memory leak occurs when Outlook keeps running in the background and consumes lots of system resources resulting in a system crash. 3 GB. For many, this bug is just more fuel for the fire in the “should I finally switch to the new Outlook?” debate. 0 - 3. A preliminary Post-Incident Report will be provided within two business days, with a final report following within five Mar 1, 2023 · lately, i've been noticing my computer taking a single second more to do stuff, like resizing windows, UAC dialogue, and even at times, so i opened up task manager and checked what was going on, and i see the power usage tab for windows explorer at " Jan 15, 2025 · Introduces general guidance for troubleshooting scenarios in which you experience high CPU usage. Feb 14, 2023 · Hello Since the new Update, my Outlook eats every second like 2.

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