Windows 7 Starter 4gb Ram Patch

I have this old Win7 32-bit laptop with 4 GB of RAM, but it was only able to use about 2.9 GB, the rest was 'reserved for hardware'. Recently I came across an interesting article by Raymond.CC 'Make Windows 7, 8 and Vista 32-bit (x86) Support More Than 4GB Memory' and PatchPae2 by Wen Jia Liu aka wj32, which should enable PAE up to 128 GB for all current 32-bit Windows versions.

However, the patch of my current Windows 7 SP1 winload.exe version 6.1.7601.23569 failed, so I fixed it.

4gb Ram Ddr3

Windows 7 users are more exposed to ransomware, says Microsoft. While the maximum RAM limit for 32-bit Windows 7 editions is 4GB, when it comes to the 64-bit editions, the amount of memory that. Then install Windows. This allows x86 RAM to go to 128GB. From Dibya # Special thanks to 5eraph and Ramsey (admin of zone54) #Special thanks to My close friends BHlPT, Dencorso, FranceBB, GreenhillManiac, 5eraph, neverseen, tomy, Samuka # thanks a whole lot to userhidden for update pack # thank a whole lot to harkaz for SP4. Dec 16, 2010 Many users of the 32-bit version of Windows 7 were disappointed that not all of their 4GB of RAM (or more) could actually be used by the operating system. Many opted for the 64-bit version of Windows 7 but still had trouble getting the operating system to recognize and use all of the memory installed in the PC.

The result: PatchPae2.exe
Source and install instructions

I looked into wj32's code and disassembled my winload.exe. Apparently it has changed in revision 23569. The original patch was for ImgpLoadPEImage, but I decided it would be more robust to patch the end of ImgpValidateImageHash. The offsets may change, but it is probably easier to maintain, as the error code C0000428h should stay constant.

I took inspiration and revision check from Elbandi. The source and executable are on github. I built it with Visual Studio 2017 Community Edition along with the great Process Hacker.

4gb Ram Laptop

My laptop is 8 years old HP 6730b, very solid, supports x64 and PAE (Physical Address Extension), but will not run Windows 10 without ugly graphic driver issues. Still it has at least 2 years of future, until Microsoft ceases to support Windows 7. I do not feel like switching to 64 bits. PatchPae works like a charm, no issues so far, using current Intel HD drivers.

You need to be aware, that the checksum verification of both loader and kernel is disabled when the patch is active. On the other hand, you can flexibly disable it per boot menu or remove it permanently from there with msconfig.exe.

Update 18.02.2018As Satoshi64 pointed out, Microsoft updated winload.exe to 6.1.7601.23992. I didn't realize that, my patched loader was loading the patched kernel without any problems. I updated them both, everything seems to work fine again. The patch was still ok, I just needed to open up the version check. I updated the code on the Github and PatchPae2.exe.

WindowsWindows 7 Starter 4gb Ram Patch

Meanwhile I found a way around the graphic glitches, got myself a new SSD and moved on to Windows 10 x64.

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