CAT port ghost

I hope someone can assist me regarding the removal of unused COM port.

I experienced a computer crash while SSDR was running. When I rebooted, CAT was corrupted. When this happens to me, CAT opens with COM 5 and a new port one number above what I have set up. In my case, I have COM ports 4 - 15 set up. After the crash CAT has only COM 5 and a COM 16 is created. When I follow the directions for removing COM 16 from CAT, then using the COM arbiter to remove all ports, and then replacing CAT file with a backup, COM 16 is no longer in my CAT file, but does not disappear from computer COM ports. With the CAT backup file reinstall COM 4 - 15, COM 16 continues to exist as a ghost. Is there a way to remove a single ghost COM port without having to remove all and recreate them.

Windows 10 OS

SSDR is latest 3.4.24

George N1GB