Hi, My Dell XPS 15 will arrive sometime early next week hopefully. I have ordered a 128GB mSATA drive so will need to reinstall Win 8 and would like to do so with a clean copy. I'm unsure if it'll be CoreSingleLanguage or not, so I've been trying to source both the correct ISOs so I've got them ready on a couple of pen drives using rufus and can just put one in depending on the results of slmgr.vbs /dlv Currently I have: en_windows_8_x64_dvd_915440.iso SHA1: 1ce53ad5f60419cf04a715cf3233f247e48beec4 Win_8_x64_Dell.iso SHA1: bb8a465c7efeb69b121b876c67e1d7106114fdd8 The above Win_8_x64_Dell.iso created using en_windows_8_x64_dvd_915440.isoWin_8_x64_Dell-PRO_CSL.svf I know the "en_windows_8_x64_dvd_915440.iso" one is correct, I have confirmed the SHA1 with MSDN but am unsure about Win_8_x64_Dell.iso. Is it CoreSingleLanguage and is the SHA1 correct? Will one of these work on the Dell laptop with no problems? The laptop is coming with Windows 8 normal (not Pro) [Edit] Wow, can't believe this is my first post, have been browsing this forum for years!! Hello all! Thanks, Craig.