Three plausible explanations:
Given that the official v14.5 came out after May 2014 (late 2014), a file dated May 5, 2014, would actually be an of 14.5, or entirely unrelated software. DriverPack Solution 14.5 -DRP 14.5 -05 05 14-
: Beyond drivers, it included basic system health checks and a software installer for common utilities. Three plausible explanations: Given that the official v14