Can't get any of Command Prompts to run. I have run the optimiser and it reports 'ok' and is set to run weekly, but there is no mention of trim anywhere. I can't find the firmware version, the driver is Microsoft 6.17600.16585. Thanks for your help.
Ignore post about fsutil. Forum myth. This only tells you if TRIM is enabled, not if the command is actually being implemented by your controller / drive. The Toolbox optimiser performs a TRIM pass so if it is showing OK then it is working. If you are running Win 7 on an Intel chipset mobo, and using either the default Windows controller drivers or latest Intel drivers (and your firmware is up to date) then TRIM is being implemented on your drive automatically.