Intel removed these from their main site but keeps them in their "Download Center Archive":
Before you wipe your drive, download all necessary drivers and save them to a USB flash drive. You will need: intel r atom tm cpu n455 - 1.66ghz drivers
What (including 32-bit or 64-bit) are you currently installing drivers for? Intel removed these from their main site but
Given the age of the Atom N455, users frequently encounter the following obstacles: intel r atom tm cpu n455 - 1.66ghz drivers
Loads entirely into the system RAM for ultra-fast performance on older hardware.