May be they are very sure that our PCs won't last longer than 5 years... As it says

Lifetime protection key is valid for the computer you first install it on, for the lifetime of the machine, not exceeding 5 years


---------- Post added at 10:22 PM ---------- Previous post was at 10:20 PM ----------

My PC is more than 6 years old BTW, they say "lifetime of the machine, not exceeding 5 years" ROFL