File deleted over a year ago still hasn't disappeared from explorer...

Thanks Tom, that did the trick... not sure if it didn't work before because I closed the command prompt before I rebooted? Or did I have to reboot from within the command prompt for it to work? Not sure... but in any case, Chkdsk log follows:

Checking file system on C:
The type of the file system is NTFS.

A disk check has been scheduled.
Windows will now check the disk.

CHKDSK is verifying files (stage 1 of 5)...
502784 file records processed. File verification completed.
1989 large file records processed. 0 bad file records processed. 2 EA records processed. 60 reparse records processed. CHKDSK is verifying indexes (stage 2 of 5)...
649522 index entries processed. Index verification completed.
0 unindexed files scanned. 0 unindexed files recovered. CHKDSK is verifying security descriptors (stage 3 of 5)...
502784 file SDs/SIDs processed. Cleaning up 309 unused index entries from index $SII of file 0x9.
Cleaning up 309 unused index entries from index $SDH of file 0x9.
Cleaning up 309 unused security descriptors.
Security descriptor verification completed.
73370 data files processed. CHKDSK is verifying Usn Journal...
36526848 USN bytes processed. Usn Journal verification completed.
CHKDSK is verifying file data (stage 4 of 5)...
502768 files processed. File data verification completed.
CHKDSK is verifying free space (stage 5 of 5)...
6235388 free clusters processed. Free space verification is complete.
Windows has checked the file system and found no problems.

488282111 KB total disk space.
462531052 KB in 366440 files.
188020 KB in 73371 indexes.
0 KB in bad sectors.
621487 KB in use by the system.
65536 KB occupied by the log file.
24941552 KB available on disk.

4096 bytes in each allocation unit.
122070527 total allocation units on disk.
6235388 allocation units available on disk.

Internal Info:
00 ac 07 00 0a b6 06 00 c2 8e 0b 00 00 00 00 00 ................
04 41 00 00 3c 00 00 00 00 00 00 00 00 00 00 00 .A..<...........
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

Windows has finished checking your disk.
Please wait while your computer restarts.


So there you have it. No disk errors found. In addition I've provided a couple of screenshots of the file in question, with everything else in the Downloads folder cleared out to make it easy to see what is going on.

Sorry it took me so long to reply, I wanted to make sure the change stuck... but unlocker worked!! The file was erased from all of Windows' records and has now disappeared completely. Rebooted and it has not yet returned. Problem solved! Thank you to all who assisted, especially Tom!