
The 32-bit version of Windows PE can boot 32-bit UEFI and BIOS PCs, and 64-bit BIOS PCs.To optimize memory use, manufacturers should ensure that their firmware reserves memory locations either at the beginning or at the end of the physical memory address space. In order to boot Windows PE directly from memory (also known as RAM disk boot), a contiguous portion of physical memory (RAM) which can hold the entire Windows PE (WIM) image must be available.(If you add drivers, packages, or apps, you'll need more memory.) The base version requires only 512MB of memory.You can run Windows PE entirely from memory. Windows PE has the same requirements as Windows with these exceptions:
#Pterm windows drivers

Networking, including connecting to file servers using TCP/IP and NetBIOS over TCP/IP via LAN.Image capturing and servicing, including Deployment Image Servicing and Management (DISM).Drivers, including a generic set of drivers that can run networking, graphics, and mass storage devices.

