Download Win32DiskImager from the Raspberry Pi Downloads Page or from

Insert your SD Card and then run Win32DiskImager.exe.  It may give an error message on startup, but you can often ignore it.  It should find your SD Card drive or if not select it.  Select the file '#.img' image file you wish to use and then press write.  Once it completes you are ready to go, insert your SD card into the Raspberry Pi.

Writing Your Own Custom SD Card Setup To A File

Run Win32DiskImager.exe

Ensure the Device drop down box has the drive your card is inserted into.

Press the folder button and select the folder and filename you want to use to write your image file to.

Press the Read button.

Example Instructions To Email To Someone

Here's the instructions to install your SD card ready for the Raspberry Pi.

1. Download and install Win32 Disk Imager from this link:

Unzip it.

2. Download the following file to a computer with at least <<<#>>>GB of free disk space.


Unzip it (this may take a while as its a large file to match the size of the SD card)

3. Plug the SD card into a SD card slot or adaptor for your PC.

4. Run the unzipped Win32DiskImager.exe application (may just be shown as Win32DiskImager depending on your windows settings)

Ensure the correct driver letter is selected for the SD card – double check this is right in Windows Explorer as Win32DiskImager will overwrite the entire drive without warning if the wrong drive is selected!

Select the unzipped <<<<YOUR FILE NAME>>>.img file

Press Write and wait for the program to write the operating system onto the SD card.

5. Once the writing is done plug the SD card into the Raspberry Pi and power it up.

"Not enough space on disk" error

You created an image file from a 8GB SD card and when you try and write it to a new 8GB SD card you get this message.  Yep, SD cards are not always identical in size and Win32 Disk Imager currently has no way to solve this.

For example:


Image file: 15564800 sectors x 512 bytes per sector = 7,969,177,600 bytes

SD card: 15523840 sectors x 512 bytes per sector = 7,948,206,080 bytes

So we need to limit the space used on the card to fit within the number of sectors available.  If you want pick a smaller size to give you an bit of unused space for possibly smaller future cards.

Then follow the guide here.



We benefit hugely from resources on the web so we decided we should try and give back some of our knowledge and resources to the community by opening up many of our company’s internal notes and libraries through mini sites like this. We hope you find the site helpful.

Please feel free to comment if you can add help to this page or point out issues and solutions you have found, but please note that we do not provide support on this site. If you need help with a problem please use one of the many online forums.

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  • alfmagne

    Win32DiskImager does not work on Windows10…

  • Mike Platsidakis

    Works fine in Windows 10. I just finished imaging and booting my Pi with a 16GB image.

  • Tim Van Kaathoven

    I have also the problem that it doesnt work on windows 10. In windows 7 it worked fine. Tried using a usb adapter instead of the internal sd card slot. Writing seems to go fine (e.g. The standard 6.0.0 stable version), but as soon as I create an image from an sd the card seems to be corrupted.

  • Carl Forrester

    Hi all, I’m trying to download the Win32DiskImager from souceforge, is it normal, ie. can I ignore that Avast is blocking the download because of this threat;

  • John Smith

    I get the same FileRepMalware from Avast. Does it really contain a virus?

  • You’d need to ask the software creator. These things can be false positives by AV software but best to ask the developer and make them aware of the issue

  • Patrik Arlid

    Me too!

  • Andy Shap

    For Windows 10 users; Right click on win32diskimager and select properties. on Compatibility tab, select Windows 7 compatibility..