I bought several laptops and netbooks off eBay with a view to refurbish and sell them; I got around 7 laptops and 9 tablets and netbooks for just £100. One of the netbooks was an Asus X205T that had it’s eMMC drive encrypted with bitlocker amongst other issues such as a dead battery and faulty keyboard. The netbook would only boot into the bitlocker recovery screen and would not allow booting from USB as it just returned to the bitlocker screen. To get around this problem and seem as I wanted to remove the existing data anyway I selected skip this drive on the bitlocker recovery which took me to the standard windows 10 repair recovery menu. Resetting the to factory settings was out as the storage drive was locked. So to get around this problem I went into the command prompt and removed all partitions with the DISKPART utility.
However upon rebooting the netbook just went straight into the BIOS and would not allow any boot options to be changed. It was set to USB for Windows to Go but would not boot anything. To cut a very long story short in order to get Windows 10 to install you must use a old USB2 stick (not USB3) and use the 32 bit version of windows. Only installation media created with the official Microsoft tool would work. Plugging this in and rebooting made it boot to the windows installer.
The reason for all this palaver is because the UEFI firmware is only 32 bit and will not see 64 bit code. Neither will it see USB3 pendrives, USB sticks etc. So if anyone ever has this problem now you know. This could apply to any older netbook and tablet running Windows 8.1 or later with a UEFI BIOS. See my previous post for a similar issue with a Dell Venue 8 Pro tablet.