A recovery USB flash drive cannot be used to install Windows 8 unless this is an OEM PC that came with Windows 8 preinstalled, and you checked the Copy contents from the recovery partition to the recovery drive box.
A created 32-bit recovery USB flash drive can only be created in a 32-bit Windows 8, and used to repair a 32-bit Windows 8.
A created 64-bit recovery USB flash drive can only be created in a 64-bit Windows 8, and used to repair a 64-bit Windows 8.
try next time to just search google.
http://www.eightforums.com/tutorials/5132-recovery-drive-create-usb-flash-drive-windows-8-a.html