NX Test

This test verifies that the system supports No-Execute (NX) at the BIOS and processor level and that Data Execution Prevention (DEP) is not set to “Always Off”.

Drivers must not run code out of the stack, paged pool, and session pool. Also, drivers must not fail to load when Physical Address Extension (PAE) mode is enabled, which is a requirement of NX.

Test details

Associated requirements


See the system hardware requirements.


Windows RT (ARM-based) Windows 8 (x64) Windows 8 (x86) Windows Server 2012 (x64) Windows RT 8.1 Windows 8.1 x64 Windows 8.1 x86 Windows Server 2012 R2

Expected run time

~5 minutes


Certification Functional




Running the test

Before you run the test, complete the test setup as described in the test requirements: WDTF System Fundamentals Testing Prerequisites.


For troubleshooting information, see Troubleshooting System Fundamentals Testing.

This test returns Pass or Fail. To review test details, review the test log from Windows Hardware Certification Kit (Windows HCK) Studio.



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