I only recently discovered that my McAfee account allows me to install it to 5 devices- at least, I think so. I'm paying $89.99 per year- and I noticed in the purchase section of the web site- that that means 5 installations. I originally purchased it when I bought a new Dell and got it from Dell.
So, I called tech support and asked about this. I was told that on my account page- and then click on subscriptions- it would say how many installations I can have- but it doesn't. But, I see on another page that I can download and install on other items. I only wish the account page specifically said how many installations I can have.