Open up a Command Prompt and type in:
fsutil behavior query DisableDeleteNotify
It will either give you a 0 or a 1 as a result. If you get a zero, that means TRIM is enabled. If you get a 1, make sure you have a TRIM-compatible SSD—you may have to Google your SSD's model number to find out.
windows 7 and 8 will auto do this for you even on an image, well depending on image software of course, most do.
h88p://lifehacker.com/5837543/how-to-migrate-to-a-solid+state-drive-without-reinstalling-windows
h88p://forum.corsair.com/forums/showthread.php?t=86403 (enable or disable trim)
for me a fresh install is always better, and quicker and causes less agro down the line as you never know if there's something wrong on a older installation etc
then again on a new pc, sdd install 12mins max inc drivers then updates (get a roll up pack with them all on) so you dont have to keep downloading them, saves time, add a few programs, alter the odd settings, all under 30 mins (just) if you do it often enough.