Bcdedit set pae forceenable windows xp

Add a comment. Active Oldest Votes. Minimizing video RAM could raise 3. This is really specific and depends on your motherboard manufacturer Install bit OS on the hardware and use Hyper-V or other virtualization technology to run your legacy app in guest bit OS Install bit server version of Windows OS which supports more than 4 GB keep in mind that all bit Windows Server OSs are unsupported Hope this helps.

Improve this answer. Jevgenij Martynenko Jevgenij Martynenko 1, 1 1 gold badge 9 9 silver badges 16 16 bronze badges. The info on your link might not be correct because my link says that XP, Vista and Win7 also had the support of the PAE feature, so it is not entirely clear why it could not work.

If Microsoft deliberately limits it in Windows 10 then of course there's not much to do. I'd be feeling disappointed about it if so.

Especially that we all know it is possible and depends only if they implement it. It is also true that the 32 bit era is and should be over. That's fair. Only a couple of legacy stuff craves for it in my case. One more thing came to my mind, that you could try to install bit version of Windows Server OS, which supports more than 4 GB.

Though all of them are unsupported, so I can't guarantee that would work. Also, please specify more details on why do you need more memory on a specific device and if bit application has any special requirements. There could be more than one solution to your problem, besides increasing addressable RAM — Jevgenij Martynenko. Well thanks. I need more memory for more cache because the server runs DBs too and it helps performance greatly.

Also I need it for other software that runs from time to time and eats about 1 to 2 GB. So if I have more RAM then the processes can split this up between them even if their own limit is 2G. Physical Address Extension PAE is a processor feature that enables x86 processors to access more than 4 GB of physical memory on capable versions of Windows.

Certain bit versions of Windows Server running on xbased systems can use PAE to access up to 64 GB or GB of physical memory, depending on the physical address size of the processor. For details, see Memory Limits for Windows Releases. The Intel Itanium and x64 processor architectures can access more than 4 GB of physical memory natively and therefore do not provide the equivalent of PAE.

PAE is used only by bit versions of Windows running on xbased systems. With PAE, the operating system moves from two-level linear address translation to three-level address translation. Instead of a linear address being split into three separate fields for indexing into memory tables, it is split into four separate fields: a 2-bit bitfield, two 9-bit bitfields, and a bit bitfield that corresponds to the page size implemented by Intel architecture 4 KB.

In bit Windows running on xbased systems, PAE also enables several advanced system and processor features, including hardware-enabled Data Execution Prevention DEP , non-uniform memory access NUMA , and the ability to add memory to a system while it is running hot-add memory.

Posted December 18, Hey bruce nice! IntelGuy Posted December 18, Bruce Posted December 18, Posted December 18, edited. Nice stuff Bruce :adios:. Edited December 18, by burned-ati. RAH Posted December 18, This is a work around added for Windows Server software OS.

Also there are several other things you need to do, to have it operate properly. Do some long boring reading. I didn't say it can't be used. I have used it. It will not do much for you with XP or Vista 32Bit, and is not needed for 64bit. MS as downgraded PAE, to ensure better driver compatibility among other things. Use if you wish, but "Beware". Create an account or sign in to comment You need to be a member in order to leave a comment Create an account Sign up for a new account in our community.