I was trying to request a ssl certificate for one of my domain but the software is using D drive for storing the certs which unfortunately is readonly drive added by our vendor as CD read only drive.
I am not able to find any settings in the UI where I can set the default drive for storing ssl location, for now it is trying to use D:/a/
If anyone knows how to change the location please help.
No, the app will normally write to the ProgramData\Certify folder and subfolders. There is nothing in the app which points to a D: drive specifically. If your system is configured to store ProgramData on D: then that would be a problem.
Does your managed certificate have any Tasks configured (under the Tasks tab)? If so check the settings to see if you are somehow selecting the D drive for a certificate export.