: It patches ntoskrnl.exe (or ntkrnlpa.exe on older versions) to ignore the hard-coded license limits that prevent the OS from utilizing higher memory addresses.
: Instead of overwriting the original system, it creates a new boot entry, allowing users to choose between the standard "safe" Windows and the "unlocked" PAE version. The Alchemy of "Number Go Up" Thread: PAE Windows kernel patch - TTLG PatchPae2.exe
The core of the issue lies in . While a standard 32-bit operating system is mathematically capped at addressing 2322 to the 32nd power : It patches ntoskrnl
PatchPae2.exe , created by the developer , acts as a bypass. It functions by: While a standard 32-bit operating system is mathematically
bytes (roughly 4 GB) of memory, modern x86 processors are capable of much more through a three-level address translation scheme. Microsoft, however, historically restricted consumer versions of 32-bit Windows to the 4 GB limit, citing driver compatibility and system stability.
: To allow the modified kernel to run, the tool also patches the boot loader ( winload.exe ) to skip digital signature verification.