It should show in either the USB section or in the Disk Drives section of Device Manager. I don't have an entry for COM ports on my computers, usually are created when installing a printer as it needs. The physical 25-pin and 9-pin ports haven't been on newer computers for awhile. If the drive is good it should show in Disk Management as to whether it is ready for partitioning then formatting or if there is data on it [won't show the data itself there]. If it is formatted it needs a drive letter assigned so File Explorer will then see it.