Hi,
Maybe you can try installing a data recovery program that lets you undelete deleted files,
here is a free software that does this: https://www.ccleaner.com/recuva/builds
Before using the software:
Even if it sounds a stupid question, but did you try looking in the Recycle Bin?
Also, try enabling Show Hidden files and folders from the control panel,
Maybe, for some reason, the file became hidden.
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3DS Max 2021, V-Ray 5.2
3DS Max user since 2003 (3DS Max 7)
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