I got an error that said "Serial port 'COM1' not found. Did you select the right one from the Tools > Serial Port menu?". Can somebody help me please?
You can list the available serial port devices in Windows using the Device Manager. Any serial ports would be listed under "Ports (COM & LPT)". If you plug in your Arduino and the USB driver is installed correctly and working, you should see a port appear here. When you unplug the Arduino, it will go away again. If you don't get that behaviour then it implies that the Arduino USB driver is not installed and working correctly.