So I’m installing a new environment for a customer, doing what you usually do.
I go to this page to get the parts that required for my installation.
I download, then start installing.
So first up is my DB2 server. I kick off the install……

I tried everything…nothing worked. I rechecked the environment.
Windows 2012 R2…there was my issue.
The install that comes with Connections for DB2 ESE 10.1 neat.
Support for R2 Windows 2012 was introduced in FP4. Download here
Hope this saves someone some time stuffing around!