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I work with tens of thousands 20kb jpg files in batches which add up to gigabytes. When I try to delete an old batch, windows 10 has a very low delete rate which some times even drops to zero for some reason:

Is this just a fact of life for the hardware I'm on, or is there some tips and tricks I could try to speed up this deletion process? Thanks for any suggestion!

From the image it looks like you are deleting the files through Explorer,
which is the slowest method possible.

What you can do to improve:

• Delete the files using Shift+Del so the deleted files
  are not moved to the Recycle Bin (no recovery possible)



• 
  

  Issue the delete from inside a Command prompt using a command similar to
  (use del /? to see all parameters):

  
  
  

  del /f/q *.* (del in current folder, add `/s` to traverse sub-folders)
  del /f/q/s folder
  

  
  

Deleting many directory entries will take longer than deleting a single directory of the net size.When deleting many files it takes many commands instead of single when single file is deleted.

Now, when 1 big file is deleted, the filemapper is told to unallocate the memory of that big file, but the 1s and 0s of the file are not reset, the mapper is just told it is free to write new stuff over the old 1s and 0s. Basically, it is one command, that takes time to clear up all of the memory allocations of the fragmented file. When you delete a million small files, you are sending a million commands to the mapper, that has to do each one at a time

So The solution is to use a software to wipe a drive of deleted files and the 1s and 0s left behind.It will take one single command to wipe the space.Use the software only if you think the files are not needed to be recovered later

I think that the Speed resides in the Microsoft Windows Command-Line PreProcessor and this is why we all love it so much.

Used with care, it can even avoid Historical Faults like the rm -Rf / that causes the Removal of the Entire Root Folder in the Unix Family of Operating Systems from where it originates.

Now, what I would suggest would be just to get rid of your frames Folder that appears in your Question. For that, the Operating System Command is RMDIR or RD as it appears in the Picture pasted below.

Your Operating System Command would be RMDIR /S /Q frames issued in the Microsoft Windows Command-Line PreProcessor started in the Folder that is the Parent Folder of the frames Folder.

The only Issue with this Solution is that it deletes the contents of the Entire frames Folder and not only your 47,189 *.JPG Files.

So we have a few ideas in this respect:

1. The First Situation would be when your frames Folder contains ONLY your 47,189 *.JPG Files in which Situation you are free to apply this Solution and afterward to recreate your frames Folder using the MKDIR or MD Operating System Command.




2. The Second Situation would be when your frames Folder contains also A FEW Files among your 47,189 *.JPG Files in which Situation you could first move them somewhere else using a File-Management Software Application and then you could move them back into the frames Folder after its Recreation as described at Point (1.).




3. The Third Situation would be when your frames Folder contains also A LOT - let us say Millions - of Files among your 47,189 *.JPG Files. In this Situation it is better for you to use other Alternative Solutions as described by other Posters on this Web-Page.