Which program do I need for testing HDD/SSD I/O speeds? One computer has Windows 7, another computer has Windows 8.1 and two computers have Windows 10. The computer takes too long to boot to Windows 7 and its has Seagate HDD. I didn't buy that computer. The program for mentally handicapped people bought me that computer. I used Hard Disk Sentinel and it reported 100% Health and 100% Performance. The other computers have SSDs.
