If you're absolutely sure that it's okay to remove them you could try using Shift-Delete (Press and hold down the SHIFT key and then tap the delete key. Release the SHIFT key).
This will bypass the Recycle Bin, but as Jak_1 asks "What os and what are the file extensions?" Are their attributes normal, not system, hidden or read only. If not normal leave them well alone. If they are zero bytes they are not taking up any significant disk space.
Have a check on Google using the folder/file names.
create an identical copy of the folder Permanently delete the original then delete the copy this should work! PS. you may not be able to remove the folder because some registry values of the program are left and are saying that the program that is not there needs the run registry mechanic to fix this see free trial link : click here
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