No Windows 8 for you TODAY ?

If you are trying to install Windows 8 build 9200 enterprise on a Pentium 4  PC, but upon boot, are getting the following error message ( or very similar) :

Your PC needs to restart
Please hold down the power button
Error Code 0x0000005D

Unlike Windows Vista and 7, Windows 8 (as from build 8400) is not compatible with all models of the Pentium 4 processor.
This is due to the fact that Windows 8 requires a processor compatible with the following functions: SSE2, PAE and NX bit.All Pentium 4 are compatible with SSE2 and EAP: the problem may come from the NX bit.

  • First, make sure your Pentium 4  model supports the NX bit: for sockets 423 or 478 processors, then it won’t work (in most cases).
  • For sockets 775 processors, it can be compatible. If the CPU supports NX-bit, you can install Windows 8 32-bit or 64-bit (it depends on the models!).
  • Also make sure that NX bit is not disabled in the BIOS (if present).