Unless arjfca just changed/posted his system specs, please note that he has a 120GB SSD.
How much free space is left on your SSD? I trust that you don't have system restore enabled with only 120GB. Restore points eat up a lot of space. Turn restore off & get rid of them. If you want the security of system restore, turn it back on & create a restore point. Just keep one point at a time.
Are you using a paging file? This takes up lots of space. Try "no paging file" & see how your system works. If you must use a paging file, keep it limited to 1GB or less.
Here are some great tips: http://thessdreview.com/ssd-guides/o...ion-guide-2/2/