Some days ago I found >this< thread at The SSD Review Forum, where a brandnew "SSD TRIM Check Tool" was discussed. The developer of the tool is a Russian named Vladimir Panteleev (nick name: CyberShadow). His Blog with the details can be joined >here<. As you can read within the linked Forum thread, I have tested the new tool intensively and found, that last test versions are giving accurate results within a minimum of time. This is what the users have to do: Download the latest tool version from >here<. Copy the EXE file into the root of C: Right click onto the EXE file and run the tool as Administrator. Hit the "Enter" button. Rerun the tool as Admin ca. 15 seconds later. If you should get the message "TRIM appears to be NOT WORKING", rerun the tool in intervals of round about 15 seconds. At least you should get the message "TRIM appears to be WORKING" (provided it really is active within your single or RAIDed SSD). Any feedback would be much appreciated.