W.r.t.SHA1 Deprecation Policywe started dual signing our product binaries i.e. same binary is signed with SHA1 and SHA2 algorithms.
After signing the binaries we wanted to test these binaries in Pre-deprecation and Post-deprecation scenarios.
We got the instructions onhttp://social.technet.microsoft.com/wiki/contents/articles/32288.windows-enforcement-of-authenticode-code-signing-and-timestamping.aspx#Testing to generate the test environment.
However, following the same instructions did not gave us expected results.
The instructions given on above page deprecates SHA1 policy and hence, drivers signed using only SHA1 algorithm are not expected to load.
But during our testing, SHA1 signed drivers were successfully loaded on Windows 7 x64 system.
Commands executed and their output: