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Bochs is a highly portable open source IA-32 (x86) PC emulator written in C++, that runs on most popular platforms. It includes emulation of the Intel x86 CPU, common I/O devices, and a custom BIOS. Currently, Bochs can be compiled to emulate a 386, 486, Pentium, Pentium Pro or AMD64 CPU, including optional MMX, SSE, SSE2 and 3DNow instructions. Bochs is capable of running most Operating Systems inside the emulation including Linux, Windows 95, DOS, and Windows NT 4. Bochs was written by Kevin Lawton and is currently maintained by this project.

Bochs can be compiled and used in a variety of modes, some which are still in more...

What's New

Version 2.6.6:


  • allow Sandy Bridge configuration even when AVX is not compiled in
Configure and compile
  • fixed compilation error when 3dnow support is enabled
  • speedup Visual Studio build by almost 20% by adding /Gr compiler option
  • fixed minimizing win32 GUI window and resolution more...


  • OS X 10.2 or later

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Current Version (2.x)


Downloads 35,479
Version Downloads 1,249
Type Utilities / System
License Free
Date 16 Jun 2014
Platform OS X / PPC 32 / Intel 32
Price Free