I know of two ways to update these computers with 32 +/- GB drives and I have used both, the problem is both need access to a second computer !
The first is to download a Linux ISO and create a bootable USB from it. Then you have the choice of doing a straight Linux install or using Linux to back-up your dat and then format the disc to NTFS. The second is to download the latest version of Win10 from MS - 'for another computer' - and again create a bootable USB from the ISO file, then do a full install of the new version of Windows. In both cases you will want to back-up any data you have on the device and take a note of any installed software and their authorisation codes if any.
And I agree with John_C at #5. The only reason I can think of is that these are meant to be seen as tablets in a laptop form. You do at least get a proper keyboard !
Edited by Chris Cosgrove, 28 July 2018 - 03:23 PM.