You also want to venture into the SSD? Like me the only intervention was made on your computer to install additional RAM? Then read on ... It is by reading the article of the Personal Computer (No. 255, pp 120-121) that I decided to take the plunge. Unfortunately nothing went as planned. In fact, my computer is newer (Acer Predator) my C: partition was 458 GB I tried for hours to reduce the size below 238 GB (formatted) my new SSD.. In practice I managed to clean my hard drive to be under 150 GB but using diskmgmt.msc function (and the "Shrink Volume") maintained that the computer could fall below 300 Go. In addition, I also read on some forums that clone hard drive was not necessarily a good idea because the computer keeps a map of the original bad sectors hard drive. By cloning the hard drive, you also clone the famous map that will consider wrongly that some brand new SSD of sectors are defective. In short, you'll understand that I resolved to reinstall my programs and W7 (hopefully not too many). In total the installation process has taken me two days whereas under the IO this operation should only take an hour. That in it worth it? My 5 stars attest :-) Ten seconds to launch W7. 3 seconds to open Photoshop 10. A mere 2 seconds to open a Word or Excel document. What happiness ... but what a pain to access.