Here's the debug file. The original was 40MB and the max upload size is under 2MB, so I cut out the parts with either clear patterns, or with the description of what Defraggler did to each file (latter for privacy reasons too). i.e. nothing important, but if something crucial is missing, or if you'd like a log from Safe mode, just let me know.
I took the following actions:
1. Started Defraggler in Debug3 mode
2. Tried to analyze C -> "Analysis Failed"
3. Tried to defrag C -> "Building File List Failed"
4. Tried to defrag free space on C ->"Building File List Failed"
5. Tried to defrag free space on C with "allow fragmentation" ->"Building File List Failed"
6. Checked drive for errors -> No major errors found
7. Analyzed and defragged my other partition -> worked fine.
(A flash drive was also attached, but I didn't analyze or defrag it)
FWIW, I've tried different settings and the usual things to fix this. I have no other software problems, except with PerfectDisk. It's 'analysis' crashes my Windows in normal mode, but boot defrag works, and I haven't tried the stealth/automatic or command line modes). Other defraggers I've tried have worked fine (Diskeeper, Auslogics, IOBit, JkDefragCmd,...).
Defraggler.exe._1_6_118__2009_01_30_23_44__short.txt
Defraggler.exe._1_6_118__2009_01_30_23_44__short.txt