Windows 10 Home - What is the maximum RAM it will address?

Hi there!

I have a couple of systems running Windows 7 Home Premium and I can't go past 16 GB of RAM.
What will the deal be with Windows 10 Home?

Thanks!

@Dude,

I can't find the Windows 10 information either, but this will work.

Cheers!

so I just upgraded to windows 10 pro thinking it would solve my memory limitations from win7, I have 16 GB's installed but it says I have only 2.98 usable memory, I am using a 32 bit oz on a x64 machine, the graph I copied from the memory management section of the microsoft windoes dev center, I have looked in the Users manual for my main board which is a Gigabyte GA-990FCA-UD3 and can't find any info regarding memory unlock, so I figured it was the software since it does register 16 gigs but not letting me use it, so if there is an unlock in the software I do not know about since this is the first time ever using win10 pro

Physical Memory Limits: Windows 10

The following table specifies the limits on physical memory for Windows 10.

Version	Limit on X86	Limit on X64
Windows 10 Enterprise	4 GB	2TB
Windows 10 Education	4 GB	2TB
Windows 10 Pro	4 GB	2TB
Windows 10 Home	4 GB	128GB

Pleadium said:

I have 16 GB's installed but it says I have only 2.98 usable memory, I am using a 32 bit oz on a x64 machine

You would need to clean install 64 bit to use all your RAM. For 32bit 4GB is the maximum and a certain amount of this is allocated to devices so what you are seeing is normal for 32 bit.

halasz said:

You would need to clean install 64 bit to use all your RAM. For 32bit 4GB is the maximum and a certain amount of this is allocated to devices so what you are seeing is normal for 32 bit.

. . .A 32 bit OS is like using a 32 bit system it will use only 3.2 gigs of memory. . .

Windows 32-bit will only be able to use a theoretical maximum of 4GB or RAM, regardless of what the motherboard can handle. You need to install a 64-bit version of Windows to access more of that memory.
Also some of the memory will be used in other things, such as on-board graphics, etc. That is why you don't see even the 4GB.

badrobot said:

It has nothing to do with Windows version ( Win 7 vs Win 10). It depends on the type of system you have (32-bit or 64-bit).

Not correct. Look at @Dude post #2. For x64 Windows 7 Home premium has maximum RAM of 16GB.

Windows 10 Home has a maximum for x64 of 128GB so it clearly does make a difference (Win 7 vs Win 10).

The OP had a problem going over 16GB on 7 - not anything to do with 32/64 bit installs - that was someone else jumping in