How to create disk image in file

This tutorial outlines how to create the disk image file, a copy of the disk or other storage media in a file, using Klennet Disk Imager.

The choice of the disk image format

The disk image come in various formats. General guidelines on choosing one over another are as follows:

  • If the image is intended for data recovery, use raw image (sector-by-sector copy),
  • If you do not intend to mount the image and access it mounted, use raw image
  • If you intend to mount the image for file access, use VHD (for media smaller than 2GB) or VHDX (for larger images)

The process

  1. Download Klennet Imager, and install it. The evaluation version will do unless you need to do imaging on an industrial scale.
  2. Run the imager and click New Project. Choose a project file name. A project file is where the progress of imaging is kept, in case a restart is needed. It is not the same as a disk image file, the disk image file is configured later. However, you may want to keep both the image file and the project file in the same folder. Remember not to select a location on the media you are going to image.
  3. Once the project file is created, I recommend you change Strategy to Multiple passes - damaged drive and leave other settings at their default values. When this is done, it should look like this Click Continue.
  4. Next step is to select the source. You need to identify your media in the list. If you have difficulty telling which one is what you need, look at the size column. Memory cards and USB flash drives are typically the smallest. Click on the source drive and then click Continue.
  5. Once the source is selected, you need to select a target. Click Create disk image. A window pops up asking you about disk image type and location. Click Browse, configure image file location as required, click OK. Make sure not to put the disk image file onto the same media you are making image of. Once the disk image is configured, click Continue.
  6. On this step, verify source and target settings in the top part of the window, then click Start. Normally, the default timing settings are pretty good.
  7. Wait till the process completes. This should look similar to the screenshot below: Close the Imager and you are done.