Moved this out of the Help section into Home & Home Office for attention.
Welcome to McAfee community. I am sorry to tell that we need to download it again to install McAfee. McAfee using download manager to download and install McAfee. It is used to avoid piracy and to get a latest version each time you install(re-install) McAfee on your machine. Please login to McAfee account and start installing McAfee again.
Click on the below link to get detailed description of “How to download and installMcAfee on your computer”.