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how to reduce the memory that MS Teams is using?

GrantHall-6425 25 Reputation points
2026-05-06T14:45:02.2+00:00

Lately i have noticed that 'new' MS Teams is using a high amount of memory compared to other apps. I use it a lot in the nature of my work, and I am wondering what I can do to help my computer speed by reducing the memory that MS Teams is using?

Microsoft Teams | Microsoft Teams for business | Settings | Other

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  1. kagiyama yutaka 3,605 Reputation points
    2026-05-10T06:51:51.6+00:00

    I think the real cause is the built‑in WebView2 browser holding memory after it runs for a long time… so u can close Teams, clear the cache in the settings, then open it again with only one window, that’s the step that reliably brings memory down.

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  2. Alexis-NG 16,520 Reputation points Microsoft External Staff Moderator
    2026-05-06T15:38:32.61+00:00

    Hi GrantHall-6425,

    To better understand the behavior and identify what may be contributing to the high memory usage, I would like to gather a bit more information:

    To better understand your setup and narrow down the cause, could you please provide a bit more detail:

    • What operating system is your computer running (e.g., Windows 10, Windows 11, macOS...)?
    • What devices you are using and what are your device specifications, such as RAM and CPU (for example, 8 GB or 16 GB RAM, i5 or i7 processor)?
    • Does this happen on any other devices or just this specific one?
    • When do you typically notice the higher memory usage while Teams is idle, during meetings (especially with video or screen sharing), or during specific activities?
    • Are you using Teams together with any third-party integrations or add-ins?

    Once I have a clearer understanding of your current situation, I’ll be happy to assist you with greater accuracy. Please feel free to share any additional details you believe are relevant. Screenshots are especially helpful and much appreciated.

    In the meantime, you can try clearing the Teams cache to remove any outdated data by following the guidance provided in the link.: Clear the Teams client cache - Microsoft Teams | Microsoft Learn

    Additionally, I would like to inform you that Microsoft is in the process of rolling out an Efficiency Mode designed for resource-constrained devices. This feature applies a reduced resource configuration by default, helping maintain performance, responsiveness, and meeting quality during your usage. I believe this could help you further in the future: Microsoft 365 Roadmap | Microsoft 365

    You can find more information about this upcoming update through this Microsoft 365 Roadmap

    Thank you for your patience and your understanding. If you have any additional questions, please feel free to reach out. 

    I'm looking forward to your reply. 

    Note: Please follow the steps in this documentation to enable e-mail notifications if you want to receive the related email notification for this thread. 

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  3. AI answer

    2026-05-06T14:45:15.8766667+00:00

    Several built-in options can help reduce Microsoft Teams memory and CPU usage and improve overall performance.

    1. Turn on or increase use of Efficiency mode (desktop)
      • In Teams, go to Settings and more (⋯) > Settings > General.
      • Scroll down to Efficiency mode.
      • Choose one of these options:
        • Always use efficiency mode – lowest processor and memory usage at all times.
        • Use only when resources are low (Default) – lets Teams automatically reduce resource usage when the device is under load.
      • Note: Enabling efficiency mode can reduce some functionality, such as camera resolution, but will lower resource consumption.
    2. Use the new Teams client
      • The new Teams app has been rebuilt to be faster and to use less CPU than the classic client, which indirectly helps with memory pressure and overall responsiveness.
      • If not already using it, switch to the new Teams experience from within the app when prompted, or via the toggle (if available in the environment).
    3. Optimize data usage on mobile (if using Teams on phones/tablets)
      • On the Teams mobile app, tap the profile picture > Settings > Data and storage > Reduce data usage.
      • Select On cellular networks or Always to reduce video quality and bandwidth usage in calls and meetings. This can help on lower-powered mobile devices and constrained networks.
    4. Avoid Teams being treated as a game on Windows 10 (if applicable)
      • On Windows 10 devices that have ever run version 1809, the Xbox Game Bar can treat Teams as a game and impact performance.
      • Make Teams the active window, press Windows logo key + G to open Xbox Game Bar.
      • Go to Settings > General and clear Remember this is a game.
      • Go to Settings > Capturing and clear Record in the background while I'm playing a game.
      • Alternatively, disable Xbox Game Bar entirely via Start > Settings > Gaming > Xbox Game Bar and turn it off.

    These changes reduce how aggressively Teams uses CPU and memory, and remove background features that can slow the system, especially on lower-spec hardware or when running many apps at once.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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