While there is no SP3, there is a middle ground that many users mistake for a Service Pack. In 2016, Microsoft released the (KB3125574).
Before you can install the Convenience Rollup on your 64-bit system, you must have the following: already installed.
However, many users refer to the as a "Service Pack 2" or "Service Pack 3" because it acts much like one. Here is everything you need to know about getting your Windows 7 system fully up to date. 1. The "Unofficial SP2": The Convenience Rollup
Microsoft released a "Convenience Rollup" (KB3125574) in 2016 . It is essentially in all but name, containing all security and non-security updates from SP1 through April 2016.