I'm having this same issue, when boot time defrag is started it just sits at:
Piriform Defraggler
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Initialized Volume C:
Starting Defragmentation
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c:\pagefile.sys
When I try to boot in safe mode, it hangs up and doesn't let me get into Windows 7.
Any other suggestions to try to disable the scheduled task of running the boot time defrag once?
Thanks in advance!
Update: I just left it at the "c:\pagefile.sys" defrag for several hours and it finally moved on and booted successfully. I've never had it take more than a few seconds to do boot time defrag, so this was very perplexing.
