Note from Samsung moderator: Please read this post later in the thread before proceeding with the tutorial. Also, please study the entire thread for relevant discussion. This tutorial explains how to do a clean install of Windows 8 and remove the recovery partition, which will leave ~100GB free on a 128GB SSD (compared to ~66GB free out of the box.) I did these steps on a NP900X4D-A05US but they should work on any new Samsung laptop with Windows 8. You will need a 4GB+ USB flash drive for this procedure. Before doing this, make a backup of your recovery partition (connect an external hard drive, open Recovery by searching for "recovery" in Metro, and select the backup option.) INSTRUCTIONS: Download a Windows 8 ISO file that corresponds to your machine's OEM version. Microsoft has a list of every Windows 8 ISO here (you can only download from this link if you are an MSDN TechNet subscriber, but that page includes SHA1 hashes for every ISO which makes it easy to confirm yours is genuine, in case you obtain it legally elsewhere.) For example if your machine came with Windows 8 (x64) (English), you will need to download en_windows_8_x64_dvd_915440.iso. As long as you choose the correct version, Windows will activate automatically and you will not be asked to enter a product key during installation as Windows 8 product keys are now embedded on the motherboard. Verify that your ISO downloaded properly and is genuine using the MD5 & SHA-1 Checksum Utility. Download and install the Windows 7 USB/DVD Download tool (it says Windows 7, but works just fine for Windows 8.) Connect your USB flash drive and follow the instructions to transfer the ISO to your flash drive. Update the BIOS to the most recent version using SW Update. If for some reason you don't have SW Update, you can download it here. Shut down the computer and reboot into the BIOS by pressing F2 repeatedly immediately after pressing the Power button. Under the "Advanced" tab, set Fast BIOS Mode to Disabled. Under the "Boot" tab, set Secure Boot to Disabled, then OS Mode Selection to CSM OS. Then select "Boot Device Priority" and move USB HDD to the top. Hit F10 to save and exit. The computer should restart and boot from your USB drive into the Windows installation. Go through the prompts and choose the custom installation option and when it asks where you want to install Windows, click "Drive options (advanced)" and delete every partition until you have one big unallocated space (~117GB on a 128GB SSD.) Proceed with the installation. The installation will go through five steps and then restart; remove the USB flash drive during the 10 second restart prompt. If you don't do this, you will end up at the initial installation prompt again...in which case just close the prompt, remove the flash drive, and restart from there. The installation will continue normally. Once the installation is finished and you've configured all your initial settings, install SW Update and update your drivers. Most items can be left unchecked; the only ones I installed were the Touchpad, Chipset, Intel Rapid Storage Technology, Graphics, Settings, and Display Color Profile...but you may want to install more or less depending on your particular configuration. After SW Settings has installed all the driver updates, reboot into the BIOS and set Fast BIOS Mode back to Enabled (but keep Secure Boot disabled and the OS Mode as CSM OS) and you're done!