I need to find finished downloads, errored files/folders in my temp folder

[zpoison]

I have a huge temp folder

So, I will be deleting the files in my temp folder and recheck/restart all the files back.

My question is:

Is there a way/a trick or a software that can help me to locate the COMPLETED files/folders in the temp folder (those who have not been moved correctly)  In order to be able to get them out  before deleting the temp folder
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Any help would be greatly appreciated

EDIT:  I will copy/save the magnets of the torrents in QBT and after that I will delete every torrents with the option checked "delete files on the hard disk"  so the only files/folders remaining in the temp folders will be the ones that are finished but have not been moved