Yea but the installation of windows 7 Ultimate is 9GB but it was 25GB on this SSD. It is only a 120GB SSD, 110GB formatted, and it looks full! Weird! But I got everything installed I wanted and it is blazing fast so I guess it doesn't matter!
Also make sure you run the Samsung disk and do all the optimizations that you can. I got a Evo 120 to go from 250mbps read and write to hitting the 540 read 410 write after running the Magician software. Do everything. The Performance Optimization, OS Optimization, and Over Provisioning. one of them will make a 10GB cashe partition that will help a lot with speed as well.
Also 16GB of ram means that it probably made a 32GB or similar size Page file which is a hidden file and can be why all your space is being taken up.
Yes that is true. Its set to 10% but you can make it what ever size you want, but if you really want the performance out of it you got to set it. At least as far as the things I've tired with the Samsung 840's