I think a refomat is in order again for my system.. for the last couple of weeks, windows explorer keeps crashing and things seem to have a huge lag on it. I have a 120gb ssd so it was quick and compared to most pcs is still but this lag and crashing is getting irritating.. it seems to have started when I installed the lion windows transformation pack on it for a while but that was soo bugy and a nightmare so uninstalled it.. If I reformat the ssd, can I leave my 1tb alone with my personal data on and still be able to access it after the reformat cause the last time I did it, i backed it all up and transfered back after to the 1tb but with nearly 600gb of files and that, I have to borrow my friends 1tb usb3 drive to be able to do it as i only got 500gb usb3. HELP!! Thanks..