splitted usb transfer instructions

docs/device/usb/windows-edge.md

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+# Running programs on your micro:bit
+
+How to compile, transfer, and run a program on your micro:bit on **Microsoft Edge**.
+
+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
+
+A message will appear at the bottom of the browser asking what you want to do
+with the file. Click **Save**:
+
+![](/static/mb/device/usb-windows-edge-1.png)
+
+Then click **Open folder** and drag and drop the file from your Downloads to
+your `MICROBIT` drive.
+
+![](/static/mb/device/usb-windows-edge-2.png)
+
+## 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
+* If you're using Windows, you can use **Send to** as described below 
+* 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.
+
+If you want to save time, you can use the [micro:bit uploader](/uploader) to
+automatically deploy hex files to your micro:bit. It works on Windows and is
+compatible with any browser.
+
+### ~hint
+
+Transfer not working? See some [troubleshooting tips](/device/usb/troubleshooting).
+
+### ~