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splitted usb transfer instructions

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# Running programs on your micro:bit
How to compile, transfer, and run a program on your micro:bit on **Chrome for Windows**.
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
### ~hint
You can use the [micro:bit uploader](/uploader) to automatically deploy ``.hex`` files to your micro:bit!
![](/static/uploader/tooltip.png)
### ~
## Requirements
You need the following things to transfer and run a script on your micro:bit:
* A-Male to Micro USB cable to connect your computer to your micro:bit. This is
the same cable that is commonly used to connect a smart phone to a computer.
* A PC running Windows 7 or later, or a Mac running OS X 10.6 or later
## Step 1: Connect your micro:bit to your computer
First, connect the micro:bit:
1. Connect the small end of the USB cable to the micro USB port on your micro:bit.
2. Connect the other end of the USB cable to a USB port on your computer.
Your computer should recognise your micro:bit as a new drive. On computers
running Windows, `MICROBIT` appears as a drive under Devices and drives. On a Mac
it appears as a new drive under Devices.
![](/static/mb/device/usb-windows-device.jpg)
## Step 2: Download your program
1. Open your project on [codethemicrobit.com](https://codethemicrobit.com)
2. Click **Download**
3. When prompted, choose to **save** the compiled file onto your computer. The
prompt will be different depending on which browser you are using, or
whether you are using a Windows computer or a Mac
Your `.hex` file appears as a download at the bottom of the browser. Click on
the arrow next to the name of the file and then click **Show in folder**.
![](/static/mb/device/usb-windows-chrome.png)
Drag and drop the `.hex` file from the download folder onto the `MICROBIT` drive.
## Step 3: Transfer the file to your micro:bit
* Once you've found the folder containing your `.hex` file, drag and drop it
onto your `MICROBIT` drive
* The LED on the back of your micro:bit flashes during the transfer (which
should only take a few seconds).
* Once transferred, the code will run automatically on your micro:bit. To rerun
your program, press the reset button on the back of your micro:bit. The reset
button automatically runs the newest file on the micro:bit.
In File Explorer, right-click on the hex file (created in Step 2 above), choose **Send to**, and then **MICROBIT**.
![](/static/mb/device/usb-windows-sendto.jpg)
By copying the script onto the `MICROBIT` drive, you have programmed it into the
flash memory on the micro:bit, which means even after you unplug the micro:bit,
your program will still run if the micro:bit is powered by battery.
### ~hint
Transfer not working? See some [troubleshooting tips](/device/usb/troubleshooting).
### ~