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Windows 7: 32 bit vs 64 bit Comparison

06 Oct 2010   #141
Dilbert8056

Win 7 32 & 64bit
 
 

Quote   Quote: Originally Posted by Ztruker View Post
I run with Win 7 Pro X64. I installed Win 7 Pro X86 under Oracle VirtualBox. After 30 days it expired and would no longer function and I could not activate it, so the answer is no, you cannot legally do this. It's a shame as it would make great test environment for doing research for posts here and on other forums.

I wonder why t's not allowed, since it would always be running on the same computer.
A VM is NOT seen as the same hardware as the actual PC it is running on.

I have 4 PCs here, all multibooting, two of them have had both 32 + 64 bit Win 7 running and activated for months. It HAS to be the same hardware to work, even though it is strictly against the licence terms.

Dil


My System SpecsSystem Spec
.
07 Oct 2010   #142
GeneO

Windows 10 Pro. EFI boot partition, full EFI boot
 
 

I have Windows 7 with 4GB memory upgraded from XP.

So I know under XP the 4GB of space was segregated into 2GB for XP, 2GB for user, unless you specify the /3G boot switch.

Does 32 bit Windows 7 overcome this or is there stall a partitioning of the memory between Windows 7 and user space? If so than this is an advantage of 63 bit over 32 bit: system and user sharing the space equally.

In any case I see this as a big advantage over XP 32 bit at least - more efficient sharing of the memory between the OS and user space.

- Gene
My System SpecsSystem Spec
08 Oct 2010   #143
Lordbob75

Windows 7 Ultimate x64, Mint 9
 
 

Quote   Quote: Originally Posted by GeneO View Post
I have Windows 7 with 4GB memory upgraded from XP.

So I know under XP the 4GB of space was segregated into 2GB for XP, 2GB for user, unless you specify the /3G boot switch.

Does 32 bit Windows 7 overcome this or is there stall a partitioning of the memory between Windows 7 and user space? If so than this is an advantage of 63 bit over 32 bit: system and user sharing the space equally.

In any case I see this as a big advantage over XP 32 bit at least - more efficient sharing of the memory between the OS and user space.

- Gene
I have never heard of that. Do you have any documentation about it?

~Lordbob
My System SpecsSystem Spec
.

08 Oct 2010   #144
GeneO

Windows 10 Pro. EFI boot partition, full EFI boot
 
 

Quote   Quote: Originally Posted by Lordbob75 View Post
Quote   Quote: Originally Posted by GeneO View Post
I have Windows 7 with 4GB memory upgraded from XP.

So I know under XP the 4GB of space was segregated into 2GB for XP, 2GB for user, unless you specify the /3G boot switch.

Does 32 bit Windows 7 overcome this or is there stall a partitioning of the memory between Windows 7 and user space? If so than this is an advantage of 63 bit over 32 bit: system and user sharing the space equally.

In any case I see this as a big advantage over XP 32 bit at least - more efficient sharing of the memory between the OS and user space.

- Gene
I have never heard of that. Do you have any documentation about it?

~Lordbob
Never heard of what? 32 bit XP reserving space for itself? There is plenty of documentation out there about windows 32 bit XP reserving 2GB of memory for itself and limiting processes to 2G unless you use the /3G boot switch.

http://msdn.microsoft.com/en-us/libr...8VS.85%29.aspx
My System SpecsSystem Spec
08 Oct 2010   #145
Lordbob75

Windows 7 Ultimate x64, Mint 9
 
 

Quote   Quote: Originally Posted by GeneO View Post
Quote   Quote: Originally Posted by Lordbob75 View Post
Quote   Quote: Originally Posted by GeneO View Post
I have Windows 7 with 4GB memory upgraded from XP.

So I know under XP the 4GB of space was segregated into 2GB for XP, 2GB for user, unless you specify the /3G boot switch.

Does 32 bit Windows 7 overcome this or is there stall a partitioning of the memory between Windows 7 and user space? If so than this is an advantage of 63 bit over 32 bit: system and user sharing the space equally.

In any case I see this as a big advantage over XP 32 bit at least - more efficient sharing of the memory between the OS and user space.

- Gene
I have never heard of that. Do you have any documentation about it?

~Lordbob
Never heard of what? 32 bit XP reserving space for itself? There is plenty of documentation out there about windows 32 bit XP reserving 2GB of memory for itself and limiting processes to 2G unless you use the /3G boot switch.

Memory Limits for Windows Releases (Windows)
Oh, this. Actually, you are incorrect.

What this refers to is the x32 limitation shared by ANY x32 OS. Each application can only use up to 2Gb of memory, and the OS can only recognize up to 4Gbs.

XP (or any other x32 OS) never reserved space "for itself" (not including hardware addressing), nor for the user (besides what the HDD can hold).

To get around this, you must use a x64 OS (be it XP, Vista, Seven, Linux, OSX, etc).

~Lordbob
My System SpecsSystem Spec
08 Oct 2010   #146
GeneO

Windows 10 Pro. EFI boot partition, full EFI boot
 
 

Quote   Quote: Originally Posted by Lordbob75 View Post
Quote   Quote: Originally Posted by GeneO View Post
Quote   Quote: Originally Posted by Lordbob75 View Post
I have never heard of that. Do you have any documentation about it?

~Lordbob
Never heard of what? 32 bit XP reserving space for itself? There is plenty of documentation out there about windows 32 bit XP reserving 2GB of memory for itself and limiting processes to 2G unless you use the /3G boot switch.

Memory Limits for Windows Releases (Windows)
Oh, this. Actually, you are incorrect.

What this refers to is the x32 limitation shared by ANY x32 OS. Each application can only use up to 2Gb of memory, and the OS can only recognize up to 4Gbs.

XP (or any other x32 OS) never reserved space "for itself" (not including hardware addressing), nor for the user (besides what the HDD can hold).

To get around this, you must use a x64 OS (be it XP, Vista, Seven, Linux, OSX, etc).

~Lordbob
Maybe I wasn't clear in my terminology. What I meant was that the available virtual address space of 4Gb for 32 bit OS is carved up between kernel space and user space 2GB and 2GB by default. If you want to increase the virtual address space of a program on a 32 bit OS, you need to use the boot 3G switch. That will give user space 3GB but at the cost of the system getting only one. In addition on the 32 bit, the OS can only use 2GB max. That is what I meant by partitioning. Giving a program access to 3GB hamstrings the OS to 1GB. Even for a machine with only 4GB of memory, with 64 bit OS and hardware, nether the OS or user space is limited in this way. In your original post you don;t touch on this or that on a 32 bit OS, you can give a program access of up to 3GB ( not just 2GB). It is at a cost.

- Gene
My System SpecsSystem Spec
08 Oct 2010   #147
Lordbob75

Windows 7 Ultimate x64, Mint 9
 
 

Quote   Quote: Originally Posted by GeneO View Post
Quote   Quote: Originally Posted by Lordbob75 View Post
Quote   Quote: Originally Posted by GeneO View Post

Never heard of what? 32 bit XP reserving space for itself? There is plenty of documentation out there about windows 32 bit XP reserving 2GB of memory for itself and limiting processes to 2G unless you use the /3G boot switch.

Memory Limits for Windows Releases (Windows)
Oh, this. Actually, you are incorrect.

What this refers to is the x32 limitation shared by ANY x32 OS. Each application can only use up to 2Gb of memory, and the OS can only recognize up to 4Gbs.

XP (or any other x32 OS) never reserved space "for itself" (not including hardware addressing), nor for the user (besides what the HDD can hold).

To get around this, you must use a x64 OS (be it XP, Vista, Seven, Linux, OSX, etc).

~Lordbob
Maybe I wasn't clear in my terminology. What I meant was that the available virtual address space of 4Gb for 32 bit OS is carved up between kernel space and user space 2GB and 2GB by default. If you want to increase the virtual address space of a program on a 32 bit OS, you need to use the boot 3G switch. That will give user space 3GB but at the cost of the system getting only one. In addition on the 32 bit, the OS can only use 2GB max. That is what I meant by partitioning. Giving a program access to 3GB hamstrings the OS to 1GB. Even for a machine with only 4GB of memory, with 64 bit OS and hardware, nether the OS or user space is limited in this way. In your original post you don;t touch on this or that on a 32 bit OS, you can give a program access of up to 3GB ( not just 2GB). It is at a cost.

- Gene
Never heard of this.

That documentation also has nothing to do with it.

~Lordbob
My System SpecsSystem Spec
09 Oct 2010   #148
CyberZeus

Windows 7 Ultimate x64 SP1 clean install
 
 

Sorry GeneO, but you are incorrect. There is no OS memory and user memory. There is only memory. The documentation you specified has nothing to do with this: it clarifies what the memory limitations are.

Cheers
My System SpecsSystem Spec
09 Oct 2010   #149
Lordbob75

Windows 7 Ultimate x64, Mint 9
 
 

Quote   Quote: Originally Posted by CyberZeus View Post
Sorry GeneO, but you are incorrect. There is no OS memory and user memory. There is only memory. The documentation you specified has nothing to do with this: it clarifies what the memory limitations are.

Cheers
Thats right.

He is thinking about the x32 limitations.

~Lordbob
My System SpecsSystem Spec
09 Oct 2010   #150
GeneO

Windows 10 Pro. EFI boot partition, full EFI boot
 
 

Quote   Quote: Originally Posted by CyberZeus View Post
Sorry GeneO, but you are incorrect. There is no OS memory and user memory. There is only memory. The documentation you specified has nothing to do with this: it clarifies what the memory limitations are.

Cheers
No I am not wrong. There is OS virtual and User space virtual address space and that article does list the limitations on each of these, which are much different for 32 and 64 bit OS. You obviously don't know the rudiments how an operating system manages memory.

Boy did I make a mistake coming to these forums. A bunch of know-it-alls that know next to nothing. I had hoped I would learn something here.
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