I used it on the Mac first, but it's maybe 2 months old now and has less than 10% used. I've tried 3 separate Windows machines now, a brand new Lenovo, an older Sony Vaio, and a year old Dell, and this driver absolutely refuses to install on ANY of those Windows machines (2 Windows 7, and 1 Windows 10).
I purchased the 1 TB Backup Plus Portable Slim External Drive.
