Download and Install Antivirus

Case Western Reserve University's Acceptable Use Policy requires computers on the University's network to have antivirus software. Symantec Endpoint Protection is no longer available for download. For other options, see the section for your operating system.

Downloading and Installing Windows Defender Antivirus

Windows Security is built-in to Windows 10 and includes an antivirus program called Microsoft Defender Antivirus. If you have another antivirus app installed and turned on, Microsoft Defender Antivirus will turn off automatically. If you uninstall the other app, Microsoft Defender Antivirus will turn back on automatically.

Run a quick scan in Windows Security

Select Start > Settings > Update & Security > Windows Security > Virus & threat protection.

Under Current threats, select Quick scan.

  • Note: Previous versions of Windows 10 this may be under Threat history, then select Scan now.

For more information, visit Microsoft's Windows Defender page.

Download Sophos Intercept X from the Software Center.

Install Sophos

  1. Open the installation package
  2. Click "Install" and follow the on-screen instructions
    Sophos welcome screen with 2 buttons, one labeled Quit and the other labeled Install
  3. After installation is complete, click "Quit"
    Sophos MacOS success screen with a button labeled Quit
  4. Note Sophos needs to receive full disk access. When prompted with the following, click "Details".
    Sophos MacOS Action Required screen with two buttons. One is labeled Dismiss. The other is labeled Details.
  5. The following window will appear. As described, open "Security & Privacy", select "Full Disk Access", and drag the Sophos icon from the window to the application list.
    Sophos MacOS instructions on how to allow Sophos to access your device.
  6. After dragging the icon to the application list, click "Quit Now"
    Sophos MacOS will not have full disk access until it is quit. There are two buttons, one labeled Later and the other labeled Quit.

Security Built In

Apple provides antivirus software built in to the system to block and remove malware. Learn more about Mac security on the Apple website.

Apple also provides steps to reduce your risk of malware. Review them in the macOS user guide.

Install ClamAV

To install ClamAV on Debian or Ubuntu Linux

  1. Open Terminal from the Applications menu, and execute the following command:
    • sudo apt-get install clamav clamav-daemon clamav-freshclam clamtk
  2. This command will install multiple ClamAV packages. More information about these can be found below.
    • clamav: This is the command-line virus scanner and engine. It can run scans on demand from Terminal, using the command clamscan.
    • clamav-daemon: This package allows ClamAV to be run on a schedule, as an on-access scanner.
    • clamav-freshclam: This package enables automatic updates for ClamAV.
    • clamtk: This is the GUI frontend for ClamAV.
  3. Once these packages have been installed, ClamAV can be run by opening the ClamTk application from the Applications menu.

To install ClamAV on CentOS or Red Hat Linux

  • Open Terminal from the Applications menu, and execute the following commands:
    1. sudo yum -y install epel-release
    2. sudo yum clean all
      • This step is necessary because ClamAV is not included in the default yum repository
    3. sudo yum -y install clamav-server clamav-data clamav-update clamav-filesystem clamav clamav-scanner-systemd clamav-devel clamav-lib clamav-server-systemd
    4. sudo systemctl enable clamd@scan.service
      • This will enable the ClamAV daemon to run scheduled scans automatically

Uninstall Symantec Antivirus

  1. In the search box on the taskbar, type "Control Panel" and select it from the results
  2. Select "Programs and Features"
  3. Select "Symantec Endpoint Protection" and click "Uninstall"
  4. When asked "Are you sure you want to uninstall Symantec Endpoint Protection", click "Yes"
  5. In order for the uninstall to complete, you must restart the computer. When prompted, click "Yes"
  1. Open Symantec Endpoint Protection
  2. From the menu at the top of the screen, click "Symantec Endpoint Protection" and select "Uninstall Symantec Endpoint Protection"
  3. Enter the computer’s username and password
  4. When prompted, click "Uninstall"
  5. In order for the uninstall to complete, you must restart the computer. When prompted, click "Restart Now"