Win32DiskImager is a cool tool on Windows except:

  • we have to manually extract the ZIP file and then flash it, and then delete the ZIP
  • it doesn't seem to work in command-line

Is there a way to make it work with compressed files? like:

win32diskimager image.img.zip e:\

Note: linked feature request: https://sourceforge.net/p/win32diskimager/features/3/

  • Use etcher etcher.io
    – CoderMike
    Jul 27, 2018 at 14:11
  • @CoderMike Looks cool, this seems to be a solution (feel free to post as answer)!
    – Basj
    Jul 27, 2018 at 16:08

1 Answer 1


I use Etcher - i've found it more reliable than Win32DiskImager and it will write an image direct from a compressed image.


  • What is the correct way to compress an image for Etcher? (Compressing to a zip file with Windows 10 causes Etcher to complain and fail. Um, or I did something wrong.)
    – Bob Brown
    Jul 28, 2018 at 0:19
  • 1
    @BobBrown Take an .iso or .img, compress it with ZIP (it will be a zipped IMG) e.g. myimage.img.zip. Then Etcher seems to accept it. Pros: you don't need to uncompress 400 MB zipped images to 3 GB file before flashing.
    – Basj
    Jul 28, 2018 at 9:05
  • 1
    @Basj Thank you. Based on your comment, I've used gzip to reduce a 15 GB image to 3 GB and then flash to SD card. (I'm now going to have to look into making smaller images because even the compressed file takes 40 minutes to flash.)
    – Bob Brown
    Jul 29, 2018 at 1:53

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