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Copy file name to clipboardExpand all lines: defender-endpoint/troubleshoot-mdav-scan-issues.md
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@@ -42,11 +42,11 @@ The key settings to be aware of are listed in the following table:
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| Setting | Details |
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|--|--|
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|`ScanOnlyIfIdle`|- **Description**: When enabled, Microsoft Defender Antivirus only performs scans when the system is idle.<br/><br/>- **Purpose**: This minimizes performance impact during active use by deferring scans until the system is not in use.<br/><br/>- **Typical Use Case**: Ideal for environments where user experience is a priority and scans can be delayed without compromising security.<br/><br/>- **Policy Name**:<br/>- **Group Policy**: Not available. <br/>- **Intune**: `./Device/Vendor/MSFT/Defender/Configuration/ScanOnlyIfIdleEnabled` <br/><br/>- **Default**: True (Enabled) |
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|`DisableCpuThrottleOnIdleScans`|- **Description**: When set to `true`, this disables CPU throttling during idle-time scans.<br/><br/>- **Purpose**: Allows Defender to use more CPU resources when the system is idle, potentially completing scans faster.<br/><br/>- **Interaction with Other Settings**: Works with `ScanOnlyIfIdle`. If both are enabled, scans run only when idle and aren't throttled.<br/><br/>- **Policy Name**:<br/>- **Group Policy**: Not available.<br/>- **Intune**: `./Device/Vendor/MSFT/Defender/Configuration/DisableCpuThrottleOnIdleScans`<br/><br/>- **Default**: True (Enabled) |
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|`AvgCPULoadFactor`|**Description**: Specifies the average CPU load (as a percentage) that Microsoft Defender Antivirus shouldn't exceed during scans. This setting doesn't apply to real time protection scans.<br/><br/>- **Purpose**: Helps maintain overall system responsiveness by limiting Defender's CPU usage.<br/><br/>- **Example**: A value of `50` means Microsoft Defender Antivirus attempts to keep its CPU usage below 50% during scans.<br/><br/>- **Interaction with Other Settings**: This setting is influenced by `DisableCpuThrottleOnIdleScans` and `ThrottleForScheduledScanOnly`, which can override or limit when throttling is applied.<br/><br/>- **Policy Name**: <br/>- **Group Policy**: `Specify the maximum percentage of CPU utilization during a scan`<br/>- **Intune**: `./Device/Vendor/MSFT/Policy/Config/Defender/AvgCPULoadFactor`|
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|`ThrottleForScheduledScanOnly`|- **Description**: When enabled, CPU throttling is applied only to scheduled scans, not to manual scans.<br/><br/>- **Purpose**: Ensures that scheduled scans are less intrusive, while allowing manual scans to run at full speed if needed.<br/><br/>- **Interaction with Other Settings**: When used with `AvgCPULoadFactor`, throttling limits only apply to scheduled scans. Manual scans ignore the CPU load factor and might use more resources.<br/><br/>- **Policy Name**:<br/>- **Group Policy**: `Cpu throttling type` <br/>- **Intune**: `./Device/Vendor/MSFT/Policy/Config/Defender/ThrottleForScheduledScanOnly`<br/><br/>- **Default**: True (Enabled) |
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|`EnableLowCpuPriority`|- **Description**: This policy setting allows you to enable or disable low CPU priority for scheduled scans.<br/><br/>- **Purpose**: Helps reduce the impact of scans on system performance by allowing other processes to take precedence over Microsoft Defender Antivirus's scanning tasks.<br/><br/>- **Interaction with Other Settings**: Complements `AvgCPULoadFactor` and `ThrottleForScheduledScanOnly` by further deprioritizing Microsoft Defender Antivirus's CPU usage. It's especially useful in environments where maintaining responsiveness during scans is critical.<br/><br/>- **Policy Name**: <br/>- **Group Policy**: `Configure low CPU priority for scheduled scans`<br/>- **Intune**: `./Device/Vendor/MSFT/Policy/Config/Defender/EnableLowCPUPriority`<br/><br/>- **Default**: False (Disabled) |
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|`ScanOnlyIfIdle`|**Description**: When enabled, Microsoft Defender Antivirus only performs scans when the system is idle.<br/><br/>**Purpose**: This minimizes performance impact during active use by deferring scans until the system is not in use.<br/><br/>**Typical Use Case**: Ideal for environments where user experience is a priority and scans can be delayed without compromising security.<br/><br/>**Policy Name**:<br/>**Group Policy**: Not available. <br/>- **Intune**: `./Device/Vendor/MSFT/Defender/Configuration/ScanOnlyIfIdleEnabled` <br/><br/>**Default**: True (Enabled) |
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|`DisableCpuThrottleOnIdleScans`|**Description**: When set to `true`, this disables CPU throttling during idle-time scans.<br/><br/>**Purpose**: Allows Defender to use more CPU resources when the system is idle, potentially completing scans faster.<br/><br/>**Interaction with Other Settings**: Works with `ScanOnlyIfIdle`. If both are enabled, scans run only when idle and aren't throttled.<br/><br/>**Policy Name**:<br/>- **Group Policy**: Not available.<br/>- **Intune**: `./Device/Vendor/MSFT/Defender/Configuration/DisableCpuThrottleOnIdleScans`<br/><br/>**Default**: True (Enabled) |
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|`AvgCPULoadFactor`|**Description**: Specifies the average CPU load (as a percentage) that Microsoft Defender Antivirus shouldn't exceed during scans. This setting doesn't apply to real time protection scans.<br/><br/>**Purpose**: Helps maintain overall system responsiveness by limiting Defender's CPU usage.<br/><br/>**Example**: A value of `50` means Microsoft Defender Antivirus attempts to keep its CPU usage below 50% during scans.<br/><br/>**Interaction with Other Settings**: This setting is influenced by `DisableCpuThrottleOnIdleScans` and `ThrottleForScheduledScanOnly`, which can override or limit when throttling is applied.<br/><br/>**Policy Name**: <br/>- **Group Policy**: `Specify the maximum percentage of CPU utilization during a scan`<br/>- **Intune**: `./Device/Vendor/MSFT/Policy/Config/Defender/AvgCPULoadFactor`|
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|`ThrottleForScheduledScanOnly`|**Description**: When enabled, CPU throttling is applied only to scheduled scans, not to manual scans.<br/><br/>**Purpose**: Ensures that scheduled scans are less intrusive, while allowing manual scans to run at full speed if needed.<br/><br/>**Interaction with Other Settings**: When used with `AvgCPULoadFactor`, throttling limits only apply to scheduled scans. Manual scans ignore the CPU load factor and might use more resources.<br/><br/>**Policy Name**:<br/>- **Group Policy**: `Cpu throttling type` <br/>- **Intune**: `./Device/Vendor/MSFT/Policy/Config/Defender/ThrottleForScheduledScanOnly`<br/><br/>**Default**: True (Enabled) |
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|`EnableLowCpuPriority`|**Description**: This policy setting allows you to enable or disable low CPU priority for scheduled scans.<br/><br/>**Purpose**: Helps reduce the impact of scans on system performance by allowing other processes to take precedence over Microsoft Defender Antivirus's scanning tasks.<br/><br/>**Interaction with Other Settings**: Complements `AvgCPULoadFactor` and `ThrottleForScheduledScanOnly` by further deprioritizing Microsoft Defender Antivirus's CPU usage. It's especially useful in environments where maintaining responsiveness during scans is critical.<br/><br/>**Policy Name**: <br/>- **Group Policy**: `Configure low CPU priority for scheduled scans`<br/>- **Intune**: `./Device/Vendor/MSFT/Policy/Config/Defender/EnableLowCPUPriority`<br/><br/>**Default**: False (Disabled) |
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