I have three Passport Ultra’s - 2 2TB and one 1TB. For some reason they stopped being recognized on my Lenovo Y50-70 laptop computer. They are still functioning properly with an older computer and they used to work fine until this weekend.
I run Windows 10 on this computer and have tried the troubleshoot option in devices and printers (which see the Passport Ultra as a device). It says it is missing the driver and takes me through the driver update and restart sequence, but at the end of that process, the drive is still not there.
When I look at the properties of the drive it says that the driver is missing and list an error code 28.