NTUSER.DAT Forensics 1: Finding the Most Recent Document

Question: What is the target name of the least recent most recent document opened in explorer?
Points: 150
Download File from: https://github.com/mfput/CTF-Questions/raw/master/NTUSER.DAT
Hint: none
Answer: POS2009.txt
Note: NTUSER.DAT\Software\Microsoft\Windows\CurrentVersion\Explorer\RecentDocs

This is the first in a series of forensics questions based around the NTUSER.DAT file, which is the registry hive for the user profile. This questions is intentionally worded in a confusing way, as we are looking for the oldest document in the "Recent Documents".

First, we'll use 

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