This repeated notification of system cannot find the drive specified would be thrown if you install the SharePoint 2013 pre-requisites by mounting an ISO file from the local file system. This issue is raised at the time when the machine is restarted during installation and configuration of pre-requisite files.
This could be nagging even after the complete installation of SharePoint as a Start-up entry would be added to the system. Even with auto runs application I couldn’t able to locate the entry from where it’s been triggered. Finally found that it’s associated with the Start-up links in Programs menu. To fix this issue simply delete the entry in the Start-up menu.