I just bought a Crucial M500 240GB SSD and after reinstalling windows I noticed that programs and applications freeze up for sometimes 20 seconds and this happens a lot. I have the SSD as my boot drive and the other 2 hard drives are still in my computer. Although I had them unhooked during windows install to ensure windows files only install on the SSD. I have the SSD set to AHCI mode in the bios which is what I heard you have to do if you want trim to work. I am very new to SSDs and have no idea what's causing all this freezing but it is very annoying.