īecause reading in 4 floppies is so time-consuming, the diagnostic floppies were hardly ever used. The boot floppy of the 4 floppies boots into Windows 95. To run the Diagnostics, all 4 floppies have to be completely read in, only then can the hardware diagnostics be started. The first floppy is bootable, and the diagnostics program is spread out on these 4 floppies. I have a set of 4 Dell Diagnostics floppies for my 10-year-old Inspiron 7500 laptop.