I have this computer for about three months and I’ve had to format it more or less 6 times because it reaches a moment when the computer goes very slow and becomes unusable. Formatting this fixes the problem for awhile but eventually comes back. But one day after I formatted the computer it rejected to not find my external hard drive. The light on the hard drive was flashing rapidly, which it usually doesnât do. I spent around 10 minuetsâ trying to figure out why the computer would not find the external hard drive, I tried different computers I tried using a USB key on the same computer but it didnât worked. Please help.