PE

PE may refer to:

==Science and technology== ===Computing and telecommunication=== P/E cycle of flash memory Phase encoding, another name for Manchester code Portable Executable, a computer file format Windows Preinstallation Environment, a lightweight version of Microsoft Windows Progressive enhancement, a strategy for web design Protocol encryption, a feature of some peer-to-peer file-sharing clients Provider edge router, a router between computer networks Project Euler, a problem solving website