The following memory and disk space is required to install Avast on a Macintosh:

• 128MB RAM.
• 750MB hard disk free space.

NOTE: If you have another anti-virus program installed, you should remove it in order to install Avast! If you have another anti-virus program, you will need to refer to the publisher for removal instructions. The Service Desk can assist.

1. Go to the Avast Installer page on TERPware to download the software.
2. Download the software directly from TERPware by clicking the Avast_Mac_Security.pkg file.
3. Click Save File and it will save to your Downloads folder or default download location.
   
   
   
   
4. Right-Click the Avast_Mac Security icon. Click Open.
5. Click Open to dismiss the security warning pop-up.
6. Click Continue to perform the compatibility check.
7. If the software detects incompatible software, uninstall it and restart the Avast Installation at step 4.
8. The Install Avast Mac Security window will open. Click Continue.
9. Click Continue after reading the Software License Agreement. 
10. Click Agree to the terms of the service software license agreement.
11. Select Install for all users of this computer and click Continue.
    
    
    
    
12. If you receive a message to close applications to continue the installation, click Close Applications and Install. If you need to save work before continuing, click Install Later, save your work, close your applications, and restart the installation.
    
    
    
    
13. If you get the message Virus Definitions download has failed!, make sure you are connected to the internet and restart the installation from step 4. 
    
    
    
    
14. If prompted, login and click Install Software.
15. Installation is now complete. Click Close.