Certutil -installcert not working "command FAILED: 0x80070002 (WIN32: 2 ERROR_FILE_NOT_FOUND)t

Hi,

I'm installing a root PKI and 2 x subordinate PKIs in a test lab

I am at the stage where I'm trying to run the below command on the subordinates so they will be trusted by the root PKI.

This should prompt me to browse for a file generated from the root PKI but I never get the chance to browse for it.

certutil -installcert

This previously worked fine on both Subordinates but now I get the below error.  This problem appears to coincide (could be wrong here) with me reinstalling the certificate authority as part of testing, i.e. it did work, I reinstalled and configured everything from scratch again, then certutil stopped working.

certutil itself is working in that I can run certutil /? 

>certutil -installcert