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Merge branch 'WI402856-update-file-monitoring-m365-doc' of https://github.com/DeCohen/defender-docs-pr into WI402856-update-file-monitoring-m365-doc
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defender-endpoint/troubleshoot-mdav-scan-issues.md

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ms.topic: troubleshooting
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ms.subservice: ngp
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search.appverid: met150
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ms.date: 03/06/2025
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ms.date: 03/11/2025
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---
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# Troubleshoot Microsoft Defender Antivirus scan issues
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| General | Excluded Extensions | |
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| General | Excluded Paths | |
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| General | Excluded Processes | |
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| Scan Schedule | Scan Parameter | This policy setting allows you to specify the scan type to use during a scheduled scan. Scan type options are: <br/>- `1` = Quick Scan (default) <br/>- `2` = Full Scan <br/><br/>If you enable this setting, the scan type is set to the specified value. <br/><br/>If you disable or don't configure this setting, the default scan type is used. |
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| Scan Schedule | Schedule Quick Scan Time | This policy setting allows you to specify the time of day at which to perform a daily quick scan. The time value is represented as the number of minutes past midnight (`00:00`). For example, `120 (0x78)` is equivalent to 02:00 AM. By default, this setting is set to disabled. The schedule is based on local time on the computer where the scan is executing. <br/><br/>If you enable this setting, a daily quick scan runs at the time of day specified. <br/><br/>If you disable or don't configure this setting, daily quick scan controlled by this configuration doesn't run. |
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| Scan Schedule | Schedule Scan Day | This policy setting allows you to specify the day of the week on which to perform a scheduled scan. The scan can also be configured to run every day or to never run at all. <br/><br/>This setting can be configured with the following ordinal number values: <br/>- (`0x0`) Every Day <br/>- (`0x1`) Sunday <br/>- (`0x2`) Monday <br/>- (`0x3`) Tuesday <br/>- (`0x4`) Wednesday <br/>- (`0x5`) Thursday <br/>- (`0x6`) Friday <br/>- (`0x7`) Saturday <br/>- (`0x8`) <br/>- Never (*default*) <br/><br/>If you enable this setting, a scheduled scan runs at the frequency specified. <br/><br/>If you disable or don't configure this setting, a scheduled scan runs at a default frequency. |
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| Scan Schedule | Scan Parameter | This policy setting allows you to specify the scan type to use during a scheduled scan. Scan type options are: <br/>- 1 = Quick Scan (default) <br/>- 2 = Full Scan <br/><br/>If you enable this setting, the scan type is set to the specified value. <br/><br/>If you disable or don't configure this setting, the default scan type is used. |
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| Scan Schedule | Schedule Quick Scan Time | This policy setting allows you to specify the time of day at which to perform a daily quick scan. The time value is represented as the number of minutes past midnight (00:00). For example, 120 (0x78) is equivalent to 02:00 AM. By default, this setting is set to disabled. The schedule is based on local time on the computer where the scan is executing. <br/><br/>If you enable this setting, a daily quick scan runs at the time of day specified. <br/><br/>If you disable or don't configure this setting, daily quick scan controlled by this configuration doesn't run. |
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| Scan Schedule | Schedule Scan Day | This policy setting allows you to specify the day of the week on which to perform a scheduled scan. The scan can also be configured to run every day or to never run at all. <br/><br/>This setting can be configured with the following ordinal number values: <br/>- (0x0) Every Day <br/>- (0x1) Sunday <br/>- (0x2) Monday <br/>- (0x3) Tuesday <br/>- (0x4) Wednesday <br/>- (0x5) Thursday <br/>- (0x6) Friday <br/>- (0x7) Saturday <br/>- (0x8) Never (*default*) <br/><br/>If you enable this setting, a scheduled scan runs at the frequency specified. <br/><br/>If you disable or don't configure this setting, a scheduled scan runs at a default frequency. |
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| Scan Schedule | Schedule Scan Time | This policy setting allows you to specify the time of day at which to perform a scheduled scan. The time value is represented as the number of minutes past midnight (00:00). For example, 120 (0x78) is equivalent to 02:00 AM. By default, this setting is set to a time value of 2:00 AM. The schedule is based on local time on the computer where the scan is executing. <br/><br/>If you enable this setting, a scheduled scan runs at the time of day specified. <br/><br/>If you disable or don't configure this setting, a scheduled scan runs at a default time. |
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| Scan Schedule | Randomize Schedule Task Times | Widen or narrow the randomization period for scheduled scans. Specify a randomization window of between 1 and 23 hours by using the setting `SchedulerRandomizationTime`. |
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| Scan Schedule | Scheduler Randomization Time | |
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The following Event IDs are related to scan operations on a device.
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- Event ID `1000` - An anti-malware scan started.
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- Event ID `1001` - An anti-malware scan finished.
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- Event ID `1002` - An anti-malware scan was stopped before it finished.
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- Event ID 1000 - An anti-malware scan started.
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- Event ID 1001 - An anti-malware scan finished.
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- Event ID 1002 - An anti-malware scan was stopped before it finished.
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For more information, see [Microsoft Defender Antivirus event IDs and error codes](/defender-endpoint/troubleshoot-microsoft-defender-antivirus).
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| Reason | Details |
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|--|--|
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| The device restarts | Details of device restarts can be reviewed using Event Viewer on the device. <br/>- Event Log: System <br/>- Event IDs: `6005`, `6006`, `6007`, and `6008` |
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| The device restarts | Details of device restarts can be reviewed using Event Viewer on the device. <br/>- Event Log: System <br/>- Event IDs: 6005, 6006, 6007, and 6008 |
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| The scan times out | Scheduled scans use `mpcmdrun`, but if someone uses `mpcmdrun` to run an on-demand scan, the timer still applies. Antivirus scans launched by the Windows Security app (Local) and the Microsoft Defender portal don't use `mpcmdrun`, and each method starts a scan directly by using `mpclient`. <br/>- Scans initiated in the Microsoft Defender portal or the Windows Security app (Quick or Full): No time limit<br/>- Scheduled Full Scans or `MpCmdRun -scan`: Seven day limit<br/>- Scheduled Quick Scans or `MpCmdRun -scan`: One day limit |
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| The device is running on battery | If a device is unplugged and running on battery during a scheduled full scan, the scheduled scan stops with event `1002`, which states that the scan stopped before completion. Microsoft Defender Antivirus runs a full scan at the next scheduled time. For more information, see [Schedule antivirus scans: Important points to keep in mind](/microsoft-365/security/defender-endpoint/schedule-antivirus-scans?#important-points-to-keep-in-mind).
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| Other power-related events | The following event IDs (from Kernel-Power) indicate changing of the power state of the device which could impact the scanning finishing in a timely manner: <br/>- `107`: The system has resumed from sleep.<br/>- `42`: The system is entering sleep. Sleep Reason: Hibernate from Sleep - Standby Battery Budget Exceeded<br/>- `507`: The system is exiting Modern Standby. Reason: Sleep, Hibernate, or Shutdown.<br/>- `506`: The system is entering Modern Standby. Reason: Lid.<br/>- `105`: Power source change. |
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| The device is running on battery | If a device is unplugged and running on battery during a scheduled full scan, the scheduled scan stops with event 1002, which states that the scan stopped before completion. Microsoft Defender Antivirus runs a full scan at the next scheduled time. For more information, see [Schedule antivirus scans: Important points to keep in mind](/microsoft-365/security/defender-endpoint/schedule-antivirus-scans?#important-points-to-keep-in-mind).
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| Other power-related events | The following event IDs (from Kernel-Power) indicate changing of the power state of the device which could impact the scanning finishing in a timely manner: <br/>- 107: The system has resumed from sleep.<br/>- 42: The system is entering sleep. Sleep Reason: Hibernate from Sleep - Standby Battery Budget Exceeded<br/>- 507: The system is exiting Modern Standby. Reason: Sleep, Hibernate, or Shutdown.<br/>- 506: The system is entering Modern Standby. Reason: Lid.<br/>- 105: Power source change. |
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## Use performance analyzer on the device
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- [Configure scheduled quick or full Microsoft Defender Antivirus scans](schedule-antivirus-scans.md)
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- [Exclusions overview](navigate-defender-endpoint-antivirus-exclusions.md)
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defender-office-365/outbound-spam-policies-configure.md

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- seo-marvel-apr2020
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description: Admins can learn how to view, create, modify, and delete outbound spam policies in Exchange Online Protection (EOP).
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ms.service: defender-office-365
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appliesto:
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- ✅ <a href="https://learn.microsoft.com/defender-office-365/eop-about" target="_blank">Exchange Online Protection</a>
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- ✅ <a href="https://learn.microsoft.com/defender-office-365/mdo-about#defender-for-office-365-plan-1-vs-plan-2-cheat-sheet" target="_blank">Microsoft Defender for Office 365 Plan 1 and Plan 2</a>
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When you're finished on the **Name your policy page**, select **Next**.
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4. On the **Users, groups, and domains** page, identify the internal senders that the policy applies to (recipient conditions):
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4. On the **Users, groups, and domains** page, identify the internal senders that the policy applies to (sender conditions):
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- **Users**: The specified mailboxes, mail users, or mail contacts.
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- **Groups**:
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- Members of the specified distribution groups or mail-enabled security groups (dynamic distribution groups aren't supported).
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The policy is applied to `[email protected]` _only_ if he's also a member of the Executives group. Otherwise, the policy isn't applied to him.
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- **Exclude these users, groups, and domains**: To add exceptions for the internal senders that the policy applies to, select this option and configure the exceptions.
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- **Exclude these users, groups, and domains**: To add exceptions for the internal senders that the policy applies to, select this option and configure the exceptions (sender exceptions).
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You can use an exception only once, but the exception can contain multiple values:
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