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Windows 7: Install Windows 7 on Computer with Less than 512MB RAM



Install Windows 7 on Computer with Less than 512MB RAM

Published by septprince
15 Aug 2009
Published by

How to Install Windows 7 on Computer with Less than 512MB RAM

information   Information
This is a process by we can install Windows 7 on computers with less than 512 MB of memory.

This is only for 32-bit version of Windows 7 because it is nearly impossible to run 64-bit version of the OS in a computer with less than 512 ram.

Although you can install Windows 7 Ultimate edition, but I recommend to install Home Premium, Home Basic, or Starter editions. Use at least 256MB ram.

warning   Warning
Things you need:

1) Windows 7 32bit ISO
2) A HEX editor. I prefer Free Hex Editor Neo.
3) UltraISO or powerISO.




Lets get started:

1) mount the ISO and copy the file "winsetup.dll" from the sources folder to any of your local drive.

2) Now open winsetup.dll with the help of Free Hex Editor Neo.

3) Under 0008e528 on the left side, find 77 07 3D 78 01 string as in the screenshot below.
Install Windows 7 on Computer with Less than 512MB RAM-hex-default.png
4) Replace 77 07 3D 78 01 with E9 04 00 00 00 and save the file.
Install Windows 7 on Computer with Less than 512MB RAM-after-change.png
5) Now open the windows 7 32bit iso with UltraISO or PowerISO. Open sources folder and replace the winsetup.dll with the file you just modified. And delete ei.cfg file to unlock all windows 7 SKU. And then save the ISO. Burn it and Install.








15 Aug 2009   #1
Snufffed

 

For those that are not affluent with such things.... maybe it will be possible for the author to make the file, and upload it some where.
then it is easy enough to open UltraIso and replace.

Just a suggestion. that way those with NO or little knowledge with such will not make a mistake. and Modify wrong.

My System SpecsSystem Spec
15 Aug 2009   #2
septprince

Window 7 build 7600, Xp pro(VM)
 
 

Quote   Quote: Originally Posted by Snuffy View Post
For those that are not affluent with such things.... maybe it will be possible for the author to make the file, and upload it some where.
then it is easy enough to open UltraIso and replace.

Just a suggestion. that way those with NO or little knowledge with such will not make a mistake. and Modify wrong.
I can upload it if Administrators allows me.........
My System SpecsSystem Spec
15 Aug 2009   #3
Brink
Microsoft MVP

64-bit Windows 8.1 Enterprise
 
 

Quote   Quote: Originally Posted by Snuffy View Post
For those that are not affluent with such things.... maybe it will be possible for the author to make the file, and upload it some where.
Sorry, but I'm pretty sure that would violate Microsoft's software distribution policy with that file.
My System SpecsSystem Spec
.


10 Oct 2009   #4
raindrop

Windows 7
 
 

I tried the following steps a few time with a few hex editors
I even double checked the ISO after it was created
but still the Installation will fail due to lack of memory (I have only 256 MB RAM)

Please advise or better, if someone can help with ISO upload
PM will also be highly appreciated
My System SpecsSystem Spec
11 Oct 2009   #5
Snufffed

 

1st remove the file from the ISO.
2d modify it with your program
3d save the new file
4th move the new file into the iso
5th save the iso with the new file.
My System SpecsSystem Spec
11 Oct 2009   #6
raindrop

Windows 7
 
 

Quote   Quote: Originally Posted by Snuffy View Post
1st remove the file from the ISO.
2d modify it with your program
3d save the new file
4th move the new file into the iso
5th save the iso with the new file.
Hi Snuffy
I did it a few times,
I even tested the file after I've burned the new ISO
all seems like the guide, but it still don't work....

Were you able to test the 512MB limitation hack with Windows 7 RTM?
My System SpecsSystem Spec
20 Oct 2009   #7
Shayx

Windows 8.1 Enterprise
 
 

not working for me.
i have already had an installation on a usb key.
i did not create a new ISO, just edited the winsetup.dll file as mentioned
but there is no EI.CFG file in sources folder.

is it crucial to delete this file? or to recreate the ISO?

update: just ran the setup via XP and it works for now.
from boot it won't install.
My System SpecsSystem Spec
21 Oct 2009   #8
Snufffed

 

Quote:
but there is no EI.CFG file in sources folder
.
all the EI.cfg file does is insure only one specific version is available, and
without the EI.cfg it gives you a choice of all version on the disc.

from the original post;

Quote:
5) Now open the windows 7 32bit iso with UltraISO or PowerISO. Open sources folder and replace the "winsetup.dll" with the file you just modified. And delete ei.cfg file to unlock all windows 7 SKU. And then save the ISO. Burn it and Install.
Quote:
There may or may not be a ei.cfg file. If you have a ei.cfg it makes is version specific. = Home Premium or Professional - etc etc.

Per say, if you remove a file(any file) from the original.iso then you must save the .modified.iso.
If you do not save then the iso remain in original form.
then it is recommended you reopen the .iso to confirm the removed file is missing.

can not say much more and keep this thread legit.


Quote   Quote: Originally Posted by Shayx
i did not create a new ISO, just edited the winsetup.dll file as mentioned
If you did not create a new .iso then the winsetup.dll is not modified.

VeRY IMPORTANT INFO..THIS ONLY WORKS WITH X86 (32 BIT).
My System SpecsSystem Spec
02 Nov 2009   #9
raj1402

win 7 build 7600.16385 x64
 
 

Quote   Quote: Originally Posted by Brink View Post
Quote   Quote: Originally Posted by Snuffy View Post
For those that are not affluent with such things.... maybe it will be possible for the author to make the file, and upload it some where.
Sorry, but I'm pretty sure that would violate Microsoft's software distribution policy with that file.
but that isnt a tweak!!!

its not fair saying it violates MS rules
My System SpecsSystem Spec
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