Hello, When I put the lock on another computer, the light is on and I can use the program easily, but when I plug it into my own computer, the light does not turn on and when I install the program, I get the error to install the sentinel hasp driver. There is no problem with the usb ports of my computer, I tried everything. The program was working before, I encountered this problem after formatting my computer. My version is v7.022 and now when I try to install it is the same. I ran into this problem even though I did everything the same. I would be glad if you help. Have a nice day.