I have a 2010 13" MBA with 4GB RAM and 128GB SSD and feel that the machine is more sluggish than it should be. This came preinstalled with SL and I did an upgrade install to Lion then again to ML. I also have a bootcamp partition with Windows 7 that I primarily use via parallels. My Issues: 1) Sluggish performance, particularly "instant on" which is anything but instant at the moment 2) Not a lot of free space left even though I don't have all that much on here, I'm thinking with windows and two OSX upgrades on top of each other, there's a whole lot of bloat What I'm considering: Clean install of ML (already created the flash drive) and using strictly parallels instead of bootcamp for windows. I never boot into windows natively and I figure this way I'd save on some of the wasted space that comes through the partitioning processes. Suggestions are welcomed.