So many gameDVR and broadcast & Agent Activation Runtimr_123 user service in

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So many gameDVR and broadcast & Agent Activation Runtimr_123 user service in

Salam ELIAS 302

All of a sudden, I sopended services for checking something, and surprised by 10 to 20 Agent Activation Runtime_some numbers...

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At same time I discovered so many GameDVR and broadcast User service where I never do any gaming on theis win 10 box

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Why now this bahvior, I have never seen those services before and how they can be removed? Thanks

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Answer 1

Clary-N 10,925 Microsoft External Staff Moderator

Hi Salam ELIAS,

In addition to the information shared above, you may notice that the number of these “_xxxx” services can fluctuate over time. For example, after multiple sign-ins or system activity, Windows may temporarily show more instances as part of how it initializes user sessions. This variation is expected and does not indicate an issue.

The GameDVR and Broadcast User Service can also appear even if you don’t actively use gaming features, as it is enabled by default in Windows. If you prefer to reduce background components, you can choose to disable this feature so new instances are no longer created.

For Agent Activation Runtime, it supports built-in assistant-related components, so it’s generally best to leave it enabled unless you are certain those features are not needed.

As a quick reassurance, you can verify these are legitimate system services by confirming they run from C:\Windows\System32, which indicates they are part of normal Windows functionality.

Please feel free to let me know if you have any other questions or need further help, I'm happy to assist.

If you have extra questions about this answer, please click "Comment".

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Salam ELIAS 302 Reputation points

2026-05-05T10:59:27.96+00:00

Thanks Clary, got it but why this behavior started showing recently?
Clary-N 10,925 Reputation points Microsoft External Staff Moderator

2026-05-06T04:03:55.4333333+00:00

Hi Salam ELIAS,

Thanks for your follow‑up.

What you’re noticing typically isn’t that these services are new, but rather that Windows is now making them more visible based on how it manages system services internally.

In Windows 10, Microsoft uses what are called“per‑user services.” According to Microsoft documentation, these services are created dynamically each time a user signs in and run within that specific user session, with separate instances that can appear with a unique suffix (such as _12345).

This means seeing multiple entries with similar names is expected behavior, as they represent service instances associated with user sessions rather than entirely different services.

As for why this became more noticeable recently, there's currently no official documented about this at the moment, but it can sometimes be related to normal system changes such as updates, restarts or how Windows initializes services for each session.

For context, services like GameDVR and Broadcast User Service and Agent Activation Runtime are built into Windows to support optional features (such as capture functionality or system assistant components), even if those features aren’t actively used.

So in short, this behavior aligns with how Windows manages per‑user services and does not indicate a problem. As long as these services are running from C:\Windows\System32, they are considered part of normal Windows functionality.

I hope this helps clarify your concern. Please feel free to let me know if you have any other questions, I’m happy to help.
Salam ELIAS 302 Reputation points

2026-05-06T06:48:48.6266667+00:00

But on this win 10 box, there is regularly only my user that is used to logon, if I am not mistaken, since 1 year, it is only my session is opened on the machine no other user opens a session

Answer 2

Agent Activation Runtime (AarSvc) and GameDVR and Broadcast User Service (BcastDVRUserService) are per‑user services. Windows creates a separate instance of each per‑user service for every user session, based on a template service defined in the registry. When a user signs out, those per‑user instances are stopped and deleted.

In Services.msc, these instances appear with suffixes such as _14813f55 because they are derived from the template service (for example, AarSvc) and are tied to specific user sessions. Seeing many of them usually means there have been multiple user sessions or sign‑ins; it is normal behavior in current Windows 10/11 builds.

To control or remove them, manage the template services rather than the individual suffixed instances:

Agent Activation Runtime (AarSvc)
- This service is marked as “Don’t disable” because it is the runtime for activating conversational agent applications.
- Disabling the template service can break dependent apps, so it should be left enabled.
GameDVR and Broadcast User Service (BcastDVRUserService)
- This per‑user service is used for game recordings and live broadcasts.
- It is documented as “OK to disable” and is commonly disabled in optimized or non‑gaming environments.
- To prevent new per‑user instances from appearing, disable the template service (for example via standard service‑management tools or optimization guidance). Once disabled, Windows will no longer create new BcastDVRUserService_… instances for future sessions.

Existing per‑user instances will disappear automatically as their associated user sessions end; there is no need to delete them manually.

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So many gameDVR and broadcast & Agent Activation Runtimr_123 user service in

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