After holding command + R during start up I ran into a problem using Time Machine trying to restore all the files in my system. Apparently the Samsung solid state SSD 859 EVO drive I put in first needs to be formatted before Time Machine can even recognize it! No error message appeared, but no destination disk could be located. Apparently that's what happens with an unformatted hard drive. The solution is to select Disk Utilities in the first window seen after pressing command +R. Then In the left sidebar I could see all the drives including the external hard drive with my Time Machine back up and also the Samsung solid state hard drive I installed. With the newly installed hard drive selected, use the default erase and re-formating options and click on ERASE (this will also format the erased drive). This operation was very quick. I then returned to Time Machine and voila, the hard drive was locatable as a destination disk.