You will need to download these files.
b. Watermark Remover
Links at the bottom.
Then let's get started.
1. Run the main program ReadyFor4GB.exe.
2. Click Check and see what what ActiveAllow comes up with. If it's 4096, then your copy of Windows is limited to the usual 3.2 - 3.7 GB RAM right where it should be.
3. Drop down a bit and click Apply to copy the kernel and patch it. (However, this is not enough. It's okay having a version of the kernel that doesn't check whether it's banned from using more memory, but the system won't boot an unsigned kernel. To make it use the unsigned kernel we have to remove a bit of security by setting "testsigning" on in the boot options with bcdedit.)
4. The script "AddBootMenu.cmd" will do this and set you up a new boot option to use the new kernel.
You then reboot, select the new 128GB kernel, and load into Windows.
Note: It only creates a boot menu of your current OS modified leaving it untouched thus you are still able to boot to your normal copy of Windows or the modified Windows which reads 4gb up.
After booting to your modified Windows you will see something on the lower left of your desktop saying "This Copy of Windows if Not Genuine". Here's what the watermark remover is for.
1. Right-click on Removewatermark (.exe) file and select Run as administrator. Make sure that you have chosen RemovewatermarkX86.exe file
2. Next, a command prompt will be opened asking your permission to continue. Press Y to continue patching process.
3. Within few seconds, a successful message will be shown. Close Command Prompt window & reboot your system.
Note: If the watermark appears even after rebooting the machine, then follow the procedure below.
1. Type CMD in Start menu search field and hit enter Ctrl + Shift + Enter to open Command Prompt with admin rights. Alternatively, go to Start > All programs > Accessories. Right-click on Command Prompt entry, and select Run as administrator.
2. In the Command Prompt, type in mcbuilder.exe and hit enter. It may take a minute to finish the process. Now, close the Command Prompt window and reboot Windows 7.
3. You should see no watermark on your desktop now.
Note: Even after using watermark and you don't see the "Copy of Windows Not Genuine" your OS is still really not genuine. It just removes the watermark but not the fact that it's not genuine. You may have alerts saying that "This Copy of Windows is not Genuine" but it's okay. Just let it be. Turn off automatic updates and whenever you want to get updates from Microsoft boot to your unmodified x86 and do the update there then boot again to your modified x86.