cym104, i know about superfetch, and i switched it off under my task manager cos i don't like how microsoft allocates my RAM

[facepalm] How'bout doing some research first? [/facepalm]
Both Windows and common Linux distros will automatically choose the PAE kernel at installation time if your CPU supports it (unless manually disabled in some rare BIOSes). And the chance that you run into a x86 CPU that doesn't support PAE nowadays is extremely low. So a PAE kernel is de fato a standard for a modern Windows or Linux system.

So you're now saying Windows installs PAE if it detects you have more than 4GB of ram during install? And you're wrong about Linux distros, a lot have a PAE kernel as an extra option after install

Finding a patch to enable PAE on Windows is a different thing. A standard Windows installation doesn't do it, that's the point.