Hi there,
Try booting into Safe Mode if you can't delete the file and then try deleting it from the safe mode.
Start your PC in safe mode in Windows 10
http://windows.microsoft.com/en-us/windows-10/start-your-pc-in-safe-mode
-Close any open programs and try deleting the file again.
-Press the Windows key + R and type cmd to open the Command Prompt.
-Type cd C:\path\to\file and press Enter. Replace C: with the actual drive letter and path\to\file with the address of the folder.
-Type .dir and press Enter to see a list of files. Make note of the exact file name and extension of the file you want to delete.
-Press Ctrl + Shift + Esc to open the Task Manager.
-Select the.Processes tab and select explorer.exe or "Windows Explorer". Click the End task button.
-Return to the Command Prompt and type .del filename.extension. This will attempt to delete the file that you specify. Make sure to include the full name and extension.
Here is a thread as well which discusses the same issue and you can try out some troubleshooting steps from this and see if that helps you to sort the Issue.
https://answers.microsoft.com/en-us/windows/forum/all/cant-delete-file-could-not-find-this-file-please/354fa74a-1d11-4acc-9fba-4128ca971e6c
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