Installation information You can install the software on standalone systems and systems managed with McAfee ePO. McAfee Endpoint Security for Mac 10.5.9 supports upgrading from 10.2.3 and 10.5.x. For installation and product usage, you can continue to refer McAfee Endpoint Security for Mac 10.5.5 documents. You can access the product documents at docs.mcafee.com. You can download the products from the McAfee products download site using your grant number. Note: To use McAfee® Endpoint Security Adaptive Threat Protection (ATP) for Mac 10.5.9, you must install or upgrade to McAfee® Endpoint Security 10.5.9.