I can't launch my steam game because of Microsoft Defender and I cant change any settings related to the antivirus

Question

I can't launch my steam game because of Microsoft Defender and I cant change any settings related to the antivirus

Framp 0

I’m trying to launch a video game, but Microsoft Defender keeps blocking the game’s executable. The block appears to come from Attack Surface Reduction (ASR) rules. I can’t disable or modify any Defender or antivirus settings because they’re locked by an administrator.

I’ve already tried verifying game files, restarting the PC, and moving the game to another drive. Controlled Folder Access is also locked, so I can’t add an exception.

The game worked before a recent update, but now Defender blocks it immediately.

How can I run the game when ASR rules are enforced and all Defender settings are locked by an admin? Is there any workaround that doesn’t require admin privileges?

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Answer 1

Vikki-T 11,450 Microsoft External Staff Moderator

Hi Framp,

I understand how frustrating this is, especially since the game worked before the recent update.

If the ASR rule and Defender settings are locked by an administrator, there is no safe workaround that a standard user can use to bypass them. Please do not try to disable Defender through Registry changes or unofficial tools.

Could you confirm whether this is your personal PC or a device managed by work or school? You can also check Settings > Accounts > Access work or school and let me know whether an organization account is connected. If possible, please share the exact Defender notification or the name of the ASR rule shown when the game is blocked, with any personal information hidden.

Please note that this is a user-to-user support forum. Contributors, including external Microsoft employees, can provide technical guidance, but cannot access your device, change security policies, or intervene in back-end systems.

I know this is not the answer you were hoping for, but I want to make sure you receive accurate and safe guidance for this situation. Thank you so much for your understanding.

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

Vikki-T 11,450 Reputation points Microsoft External Staff Moderator

2026-09-30T11:07:23.2866667+00:00

Hi Framp,

It has been a while and I am writing to see how things are going with this issue.

Have you had a chance to check the replies provided?

Any update would be appreciated.
Framp 0 Reputation points

2026-10-01T12:29:16.04+00:00

I am using a personal device, its has administration that are tied to the specific brand (Lenovo Yoda) and that stops me from accessing any antivirus or microsoft defender settings that i can temporarily turn off to play the game.
Vikki-T 11,450 Reputation points Microsoft External Staff Moderator

2026-10-01T12:33:48.62+00:00

Hi Framp,

Thank you for clarifying that this is your personal device.

Since the Defender settings are still restricted, I would first like to identify what is actually managing them rather than suggest turning off or bypassing the protection.

Could you please share a screenshot of the message shown in Windows Security > Virus & threat protection > Manage settings, especially anywhere it says the settings are managed by an administrator or organization? Please hide any personal information before posting it.

Also, if possible, please share the exact Defender notification or ASR rule shown when the game is blocked. This should help narrow down whether the restriction is coming from a Windows security policy or another configuration on the device.

Thank you for your patience while we narrow this down.
Framp 0 Reputation points

2026-10-02T01:51:35.9233333+00:00

Don't worry about it now. The Issue fixed itself. After doing some research, since the game I was trying to launch is a small game that is still in Beta testing, Microsoft defender wasn't confident in how safe the game was so it blocked it. Now its unblocked and its working. I'll mention it again if the same issue arises again.
Vikki-T 11,450 Reputation points Microsoft External Staff Moderator

2026-10-02T10:15:45.4566667+00:00

Hi Framp,

I’m glad to hear that the game is now unblocked and working again. Thank you for taking the time to update the thread.

Since the game is still in beta, if the issue returns, please keep a screenshot of the exact Microsoft Defender notification and consider reporting it to the game developer as well. That information may help determine what triggered the block.

For now, no further action is needed. I hope you enjoy the game!