However, DNG files may get deleted or lost due to a variety of accidents.
Common Reasons Why DNG Files Are Deleted/Lost
There are many situations in which DNG pictures are lost.
Way 1.
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The file(s) will be restored to the original location(s).
Way 2.
Amongsecure data recovery serviceson the market,MiniTool Power Data Recoveryis the most recommended one.

Why you should choose MiniTool Power Data Recovery?
Major steps to recover deleted DNG files:
Step 1.
Download, install, and launch MiniTool Power Data Recovery Free on your Windows computer.

Here we take scanning the desktop for example.
To get the best file scanning result, it is advisable to complete the whole scan process.
On the scan result page, all found files are categorized by file path by default.

To preview a DNG photo, either select it and hit thePreviewbutton or just double-smack the file.
Finally, select all required items and click theSavebutton.
In the pop-up window, choose an appropriate file directory to store the chosen data.

Note that you should not store the recovered files to the original drive to avoid data overwriting.
As mentioned before, MiniTool Power Data Recovery Free only helps recover up to 1 GB of files.
Furthermore, a full edition supports creating bootable media andrecovering files from unbootable computers.

I found the solution in this post to quickly restore my DNG files by using MiniTool Power Data Recovery.
Here this article lists several options.
Way 3.
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Press theWindows + Ikey combination to open configs.
ClickUpdate & Security>Files backup>More optionsunderBack up using File History.
In the new window, scroll down to clickRestore files from a current backup.

Step 4. go for the needed files, then nudge the greenRestorebutton to get them back.
To retrieve DNG files on a Mac, consider using the following methods instead.
Way 1.
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First, openTrashfrom your desktop.
After that, you are supposed to find and right-opt for desired DNG files and then choosePut Back.
The recovered files will be put back to their original locations for direct viewing and editing.

Way 2.
Under these circumstances, Stellar Data Recovery for Mac can be utilized to recover your files.
We have collected several useful tips below for your reference.

Back up DNG Photos Regularly:
Prevention is always better than cure.
Having file backups is a fundamental method of disaster recovery.
It helps protect your data from accidental deletion, hard drive corruption, system failure, and operational errors.
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When it comes to file backup,MiniTool ShadowMaker, the best Windows backup software, is highly recommended.
It provides data protection services and disaster recovery solutions for PCs, Servers, and Workstations.
you’re free to use it toback up files, folders, partitions, disks, and systems.
MiniTool ShadowMaker TrialClick to Download100%Clean & Safe
Step 1.
Launch MiniTool ShadowMaker, then clickKeep Trialto continue.
ClickDESTINATIONto choose an appropriate location to store the backup images.
Finally, click theBack Up Nowbutton located in the lower right corner to start the file backup process.
Alternatively, you might back up DNG photos by transferring them to external hard drives or cloud drives.
Other Tips:
Apart fromdata backup, there are additional preventive measures to avoid DNG photo loss/corruption.
Also, hope the above tips can help you avoid the dilemma of data loss forever.