Please help in uploading

Development Tools IDE 1.x
1

A month ago i bought an arduino UNO, i tried some beginners programs e.g blinking LEDs etc, after that i kept it for a month due to my exams, now when i try to upload a program to the board it gives me an error
:

Arduino: 1.8.1 (Windows 8 ), Board: "Arduino/Genuino Uno"

Sketch uses 444 bytes (1%) of program storage space. Maximum is 32256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.
avrdude: ser_open(): can't open device "\.\COM1": The system cannot find the file specified.

Arduino is not even showing up in the device manager, the green light is on and the orange L light is constantly blinking, i tried different cables, tried on a windows 7 pc and a windows 8 pc but same problem, please help me i am a beginner.
Thanks in advance

2

Do you hear the typical beep that Windows makes when you insert a USB device?

COM 1 is usually not the Arduino!

3

no beep, there is usually no sign in pc that arduino is connected

4

Are you using a known good cable? There has been a plague of bad USB cables recently (I wonder if some vendor of cheap clone arduinos shipped out a batch of bad cables or something).

If you don't get any response (not even an unknown device), when using a known good cable, that is not a good sign for the arduino.

Was that board ever known to work? If so, what was being done with it when it last worked?