Service Pack Fails To Execute

I am not a SQL Server (or Windows) expert, but I maintain a commercial software application with SQL Server 2014 as its back-end data store. My current environment is:

  • Windows (VM) is currently Windows Server 2008 R2 Enterprise, Service Pack 1
  • SQL Server is currently 12.0.2269.0 (x64)

I need to apply Service Pack 3 for SQL Server. I downloaded SP3 KB4022619, but it fails to execute:

"The version of this file is not compatible with the version of Windows you're running. Check your computer's system information to see whether you need x86 (32-bit) or x64 (64-bit) version of the program, and then contact the publisher."

I get this same error with 32-bit and 64-bit executable.

What upgrade path or service pack do I need to bring the software up-to-date?