I bought your products to solve boot problems on 3 of my 4 disks. One SSD worked fine with Windows 7. Your repair tool had different drive label letters and I "repaired" the disk that worked along with the other 3. So now, not only are they NOT FIXED but I can not boot any of them . Got your USB OSI bootable thumb drive loaded with the Windows 7 ulitmate and loaded to all 4 drives. Now I get "A disk read error occurred. Press Ctrl+Alt+Del to restart. It will not restart. I shut down manually with power button. This has been HOURS of hugely frustrating effort with now a totally unusable machine. What now?