My external 1gb USB hard drive works on several windows 7/8/10 laptops. It used to work with this particular Windows 10 laptop, but has stopped. Other external USB hard drives still work on this laptop. When plugged in, it shows up as ADplus SuperVer USB Device. It is a 1 Gb drive. On the laptops where it works, it shows up as 931.51 Mb NTFS Primary drive.

On this laptop, it shows up as a 1386.25 Mb drive - with 3 partitions - 867.16 Unallocated, 259.48 Primary, 259.61 Primary.

I can read/write to the drive on other laptops without any problem.