# Uploading programs on your micro:bit

While you're writing and testing your programs, you'll mostly be [running them
in the simulator](/device/simulator), but once you've finished your program you
can **compile** it and run it on your micro:bit.

The basic steps are:

1. Connect your micro:bit to your computer via USB
2. Click **Download** and download the `.hex` file
3. Copy the `.hex` file from your computer onto the micro:bit drive

![](/static/mb/device/usb-thin.jpg)

## Instructions

Pick the instructions for your operating system and browser:

* [Windows - Microsoft Edge](/device/usb/windows-edge)
* [Windows - Internet Explorer](/device/usb/windows-ie)
* [Windows - Chrome](/device/usb/windows-chrome)
* [Windows - Firefox](/device/usb/windows-firefox)
* [Mac - Safari](/device/usb/mac-safari)
* [Mac - Chrome](/device/usb/mac-chrome)
* [Mac - Firefox](/device/usb/mac-firefox)

### ~hint

Transfer not working? See some [troubleshooting tips](/device/usb/troubleshooting).

### ~