I'm running Win 7 Ultimate x64 on a desktop with the OS loaded on an Intel 160GB G2 SSD as C:. I've noticed that Defrag is happening on the SSD drive. I've confirmed this in two ways: First, looking at the Last Run date in the Disk Defragmenter UI. The date associated with the SSD drive C: continues to move forward. Second, I've looked in the event log and have confirmed that there are messages stating the successful defragmentation on the C: drive.
I have 3 drives in my system. The SSD drive is C:. I have 2 WD 750GB drives as D: and E:. If I look at the Defragmentation Schedule UI, only drive D: and E: appear. Just to be safe I turned off Scheduled Defragmentation and Defragmentation has stopped on D: and E: but continues on C:.
Looking at the event log, there seems to be no discernable pattern as to when the defrag happens on the SSD:
I can't find any place to stop Defragmentation from happening on C:. Any suggestions?