Windows 7 SP1 fully-patched, 64-bit.
Disk is 2 TB, 30% full.
Defrag takes place, apparently successfully, but on re-execution it crashes at 43%.
CHKDSK has been run on the offending disk, but the Defraggler crash still occurs.
Here's the brief crash info.
Can I get you any more information?
Problem signature:
Problem Event Name: BEX64
Application Name: Defraggler64.exe
Application Version: 2.6.0.328
Application Timestamp: 4e13ff88
Fault Module Name: Defraggler64.exe
Fault Module Version: 2.6.0.328
Fault Module Timestamp: 4e13ff88
Exception Offset: 00000000001c82c8
Exception Code: c000000d
Exception Data: 0000000000000000
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 2057
Additional Information 1: c6e0
Additional Information 2: c6e0e25c260d29f75ab13edbfaa32dea
Additional Information 3: 4006
Additional Information 4: 40061da3d83c2933fcd424e21ba4489f