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#520
The in-place, from whatever source, will retain your apps and settings, and re-install all default Store apps. A clean, wipe-it-all-start-over, will obviously retain nothing. You may want to do a clean and add back in any apps/progs you deem necessary, including those you can get from HP. That way, you know your exact starting point, no guessing, no leftover bits 'n bytes from HP. Only what you purposely put on there. When you go to do the clean install, and get to the point of it asking where to install, delete every partition you see. All of them. ALL. You will end up with one unallocated partition. Install it there. Windows will create what it needs where it needs to. Nothing more, nothing less. If you set it up with a Microsoft Account, it will also install all default Store Apps.