Trend Micro Antivirus Security Pre-Activated Full Version
Kuldip Mansager
If you're using non-Microsoft antivirus/antimalware software, you might be able to run Microsoft Defender Antivirus alongside the other antivirus solution. This article describes what happens with Microsoft Defender Antivirus and non-Microsoft antivirus/antimalware software, with and without Microsoft Defender for Endpoint.
On Windows Server, if you're running a non-Microsoft antivirus product, you can uninstall Microsoft Defender Antivirus by using the following PowerShell cmdlet (as an administrator): Uninstall-WindowsFeature Windows-Defender. Restart your server to finish removing Microsoft Defender Antivirus.On Windows Server 2016, you might see Windows Defender Antivirus instead of Microsoft Defender Antivirus.If you uninstall your non-Microsoft antivirus product, make sure that Microsoft Defender Antivirus is re-enabled. See Re-enable Microsoft Defender Antivirus on Windows Server if it was disabled.
Smart App Control is a consumer-only product that's used on new Windows 11 installs. It can run alongside your antivirus software and block apps that are considered to be malicious or untrusted. Learn more about Smart App Control.
On Windows Server 2019, Windows Server, version 1803 or newer, Windows Server 2016, or Windows Server 2012 R2, Microsoft Defender Antivirus doesn't enter passive mode automatically when you install a non-Microsoft antivirus product. In those cases, set Microsoft Defender Antivirus to passive mode to prevent problems caused by having multiple antivirus products installed on a server. You can set Microsoft Defender Antivirus to passive mode using a registry key as follows:
You can view your protection status in PowerShell by using the command Get-MpComputerStatus. Check the value for AMRunningMode. You should see Normal, Passive, or EDR Block Mode if Microsoft Defender Antivirus is enabled on the endpoint.
Note the modified logic for ForceDefenderPassiveMode when tamper protection is enabled: Once Microsoft Defender Antivirus is set to active mode, tamper protection prevents it from going back into passive mode even when ForceDefenderPassiveMode is set to 1.
On Windows Server 2016, Windows Server 2012 R2, Windows Server version 1803 or newer, Windows Server 2019, and Windows Server 2022, if you're using a non-Microsoft antivirus product on an endpoint that isn't onboarded to Microsoft Defender for Endpoint, disable/uninstall Microsoft Defender Antivirus manually to prevent problems caused by having multiple antivirus products installed on a server. However, Defender for Endpoint includes capabilities that further extend the antivirus protection that is installed on your endpoint. If you have Defender for Endpoint, you can benefit from running Microsoft Defender Antivirus alongside another antivirus solution.
For example, Endpoint detection and response (EDR) in block mode provides added protection from malicious artifacts even if Microsoft Defender Antivirus isn't the primary antivirus product. Such capabilities require Microsoft Defender Antivirus to be installed and running in passive mode or active mode.
Defender for Endpoint affects whether Microsoft Defender Antivirus can run in passive mode. And, the state of Microsoft Defender Antivirus can affect certain capabilities in Defender for Endpoint. For example, real-time protection works when Microsoft Defender Antivirus is in active or passive mode, but not when Microsoft Defender Antivirus is disabled or uninstalled.
a. "Start the scheduled scan only when computer is on but not in use" is set to "Not configured or enabled". A Windows Task Scheduler is created unless you set "Start the scheduled scan only when computer is on but not in use" to disabled.
b. "Turn on catch-up quick scan" is set to "Not configured or enabled". Every 30 days (default number of days) a quick catchup scan continues to occur unless "Turn on catch-up quick scan" is set to disabled. Scan tasks that are set up in Windows Task Scheduler continue to run according to their schedule. If you have scheduled tasks, you can remove them, if preferred.
c. "Turn on scan after security intelligence update" is set to "Not configured or enabled". By default, a quick scan occurs after a "Security Intelligence Update" unless you set "Turn on scan after security intelligence update" to disabled.
When Microsoft Defender Antivirus is in passive mode, it doesn't remediate threats. However, Endpoint detection and response (EDR) in block mode can remediate threats. In this case, you might see alerts showing Microsoft Defender Antivirus as a source, even when Microsoft Defender Antivirus is in passive mode.
The security intelligence update cadence is controlled by Windows Update settings only. Defender-specific update schedulers (daily/weekly at specific time, interval-based) settings only work when Microsoft Defender Antivirus is in active mode. They're ignored in passive mode.
Don't disable, stop, or modify any of the associated services that are used by Microsoft Defender Antivirus, Defender for Endpoint, or the Windows Security app. This recommendation includes the wscsvc, SecurityHealthService, MsSense, Sense, WinDefend, or MsMpEng services and processes. Manually modifying these services can cause severe instability on your devices and can make your network vulnerable. Disabling, stopping, or modifying those services can also cause problems when using non-Microsoft antivirus solutions and how their information is displayed in the Windows Security app.
In Defender for Endpoint, you can turn EDR in block mode on, even if Microsoft Defender Antivirus isn't your primary antivirus solution. EDR in block mode detects and remediate malicious items that are found on the device (post breach). To learn more, see EDR in block mode.
Beginning with platform version 4.18.2208.0 and later: If a server has been onboarded to Microsoft Defender for Endpoint, the "Turn off Windows Defender" group policy setting no longer completely disables Windows Defender Antivirus on Windows Server 2012 R2 and later. Instead, it place Microsoft Defender Antivirus into passive mode. In addition, the tamper protection allows a switch to active mode, but not to passive mode.
Note the modified logic for ForceDefenderPassiveMode when tamper protection is enabled: Once Microsoft Defender Antivirus is toggled to active mode, tamper protection prevents it from going back into passive mode even when ForceDefenderPassiveMode is set to 1.
In active mode, Microsoft Defender Antivirus is used as the antivirus app on the machine. Settings that are configured by using Configuration Manager, Group Policy, Microsoft Intune, or other management products apply. Files are scanned, threats are remediated, and detection information is reported in your configuration tool (such as in the Microsoft Intune admin center or the Microsoft Defender Antivirus app on the endpoint).
In passive mode, Microsoft Defender Antivirus isn't used as the antivirus app, and threats aren't* remediated by Microsoft Defender Antivirus. However, Endpoint detection and response (EDR) in block mode can remediate threats. Files are scanned by EDR, and reports are provided for threat detections that are shared with the Defender for Endpoint service. You might see alerts showing Microsoft Defender Antivirus as a source, even when Microsoft Defender Antivirus is in passive mode.
When Microsoft Defender Antivirus is in passive mode, you can still manage updates for Microsoft Defender Antivirus; however, you can't move Microsoft Defender Antivirus into active mode if your devices have a non-Microsoft antivirus product that is providing real-time protection from malware.
Make sure to get your antivirus and antimalware updates, even if Microsoft Defender Antivirus is running in passive mode. See Manage Microsoft Defender Antivirus updates and apply baselines. Passive mode is only supported on Windows Server 2012 R2 & 2016 when the machine is onboarded using the modern, unified solution.
When disabled or uninstalled, Microsoft Defender Antivirus isn't used as the antivirus app. Files aren't scanned and threats aren't remediated. Disabling or uninstalling Microsoft Defender Antivirus isn't recommended in general; if possible, keep Microsoft Defender Antivirus in passive mode if you're using a non-Microsoft antimalware/antivirus solution.
In cases where Microsoft Defender Antivirus is disabled automatically, it can be re-enabled automatically if the non-Microsoft antivirus/antimalware product expires, is uninstalled, or otherwise stops providing real-time protection from viruses, malware, or other threats. The automatic re-enabling of Microsoft Defender Antivirus helps to ensure that antivirus protection is maintained on your endpoints.
Microsoft FSLogix is free for all Microsoft RDS CALs, Microsoft Virtual Desktop Access per-user CALs, and all Microsoft Enterprise E3/E5 per-user licenses. Notice that per-device licenses are excluded. See Licensing Requirements at Microsoft Docs.
To prevent Citrix Desktop Service (BrokerAgent) from starting and registering with the Delivery Controllers before the boot process is complete, see Jeremy Saunders Controlling the Starting of the Citrix Desktop Service (BrokerAgent).
Adaptive Transport is a HDX/ICA protocol feature that tries to use UDP ports (EDT protocol) if they are open, and falls back to TCP ICA if UDP connection is not successful. On higher latency connections, EDT (UDP) tends to perform better than traditional TCP ICA.
For EDT (and Adaptive Transport) through Citrix Gateway, make sure your Citrix ADC firmware is up to date, preferably 12.1 or newer. Then make sure DTLS is enabled on the Gateway Virtual Server. DTLS is the UDP version of SSL/TLS. Also, open UDP 2598 and UDP 1494 from the ADC SNIP to the VDAs.
Several people in Citrix Discussions reported the following issue: If you see a message about RD Licensing Grace Period has expired even though RD Licensing is properly configured, see Eric Verdumen No remote Desktop Licence Server availible on RD Session Host server 2012. The solution was to delete the REG_BINARY in HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\RCM\GracePeriod only leaving the default. You must take ownership and give admin users full control to be able to delete this value.
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