How to Exclude SoftActivity Agent from Microsoft Defender Antivirus
Microsoft Defender Antivirus in Windows Security, formerly Windows Defender Antivirus on older Windows versions, may sometimes detect SoftActivity Monitor application or Agent files on monitored computers as a threat and remove them. It may categorize them as MonitoringTool:Win32/ActivityMonitor, PUA:Win32/SoftActivity (Potentially Unwanted Application), or similar.
There is no virus or malware in SoftActivity Monitor software. The software only does what is declared in its features described on the website: it records user activity on company-owned computers to help with insider threat detection and employee productivity tracking. The SoftActivity application folder can be excluded from scanning by an administrator to allow this software.
Microsoft Defender Antivirus exclusions reduce scanning coverage for the selected path. Limit the exclusion to the SoftActivity Agent folder and apply it only on computers where SoftActivity Agent is authorized by your organization.
Add manually via Windows Security in Windows 11/10
Note: if your organization uses Group Policy in Active Directory to manage Microsoft Defender Antivirus exclusions, scroll down for how to add an exclusion there. This is the recommended way for domain-managed computers. If you add an exclusion rule to a computer locally, it may later be removed or overridden by Group Policy or endpoint security policy.
If you want to add an exclusion to one or several computers in your organization that are not managed by Group Policy, follow the steps in this section.
Click the Windows Start button and start typing virus, then click the Virus & threat protection link to open the Windows Security settings page:

Scroll down to the Virus & threat protection settings section on the page, then click Manage settings:

On the next page, scroll down to the Exclusions section and click Add or remove exclusions. On some older Windows versions this area may still be described using the legacy Windows Defender name:

Click Add an exclusion, then select Folder in the drop-down menu. In the Select Folder dialog, enter the Agent folder path:
C:\Windows\sysnchrb
The folder is hidden by default, so you cannot see it when browsing. Type the path directly into the Folder field, or copy and paste it.
If the Agent module has not yet been installed on this system, first create a new empty sysnchrb folder inside C:\Windows. Otherwise, Windows will say the folder does not exist. After SoftActivity Agent is installed, it hides the folder so the monitored user cannot see it. Click Select Folder to apply the folder selection:

After these steps, you should see the Agent folder added to exclusions in Microsoft Defender Antivirus. The antivirus will ignore the presence of the Agent module on the monitored PC:

You can then install Agent remotely from the SoftActivity Monitor desktop application on the administrator’s computer.
Add via Group Policy Editor
If you want to add the exclusion to all computers in your Active Directory network before installing Agent, this can be done through Group Policy.
Administrators can do the following:
- Open
Group Policy Management Editor, then selectComputer Configurationand selectAdministrative Templates. - Expand the tree to
Windows Components > Microsoft Defender Antivirus > Exclusions. On older Windows administrative templates, this may still appear underWindows Defender Antivirus. - Open the
Path Exclusionssetting for editing, then add the Agent folder to exclusions. - Set the option to
Enabled. - Click the
Show...button inside theOptionspanel. - Enter
C:\Windows\sysnchrbas the content of theValue namecolumn. - Enter
0(zero) as the content of theValuecolumn. - Click
OKon theShow Contentsdialog box. - Click
OKto apply the new exclusion.

After these steps, Microsoft Defender Antivirus will ignore files of the Agent module on monitored computers after this Group Policy is applied. This usually happens upon reboot. The policy can also be applied anytime by running this command on a remote computer:
gpupdate /force
Smart App Control in Windows 11
Smart App Control in Windows 11 is separate from Microsoft Defender Antivirus exclusions. It can block apps, scripts, or app components before they run if Windows does not trust them.
Microsoft does not provide a per-app allowlist for Smart App Control. If Smart App Control blocks SoftActivity Agent installation or execution, an administrator should open Windows Security > App & browser control > Smart App Control settings and temporarily turn off Smart App Control if company policy allows it.
After installation, verify that SoftActivity Agent is running and that the computer appears in SoftActivity Monitor. Keep Microsoft Defender Antivirus folder exclusions configured separately where needed. In managed environments, align Smart App Control settings with your organization’s endpoint security policy rather than treating this as a local user workaround.
By SoftActivity Team
