arduino.rar

arduino.r
I bought an arduino uno in south america , from china, and when i decide to dounload the software to start working, i coudm´t doit with any verion of arduino,rar all are “damaged” i have windos 7 and i can not migrate to 10. i love 7!! i really cool. In my opinion W10 is too “green” untill now, , 7 has yeasr in the market and most of the bugs are solved.
So how can i download the arduino with problems?
thanks. martin iruleguy