Problem solved!
As soon as I uninstalled Windows Media Player on my PC, e-Sword version 13.0 which had been installed on my pc for a considerate period of time, stopped functioning. I downloaded and installed the latest version of e-Sword (13.0) again, yet the problem persisted. Upon inquiry, e-Sword Helpdesk confirmed that the latest version (13.0) requires Window Media Player to be installed and enabled. Since I found it troublesome to download WMP through win10, I instead downloaded an older version of e-Sword (10.7). It installed troublefree and it is working perfectly. I trust that this advice might solve your frustration too.