Physical Address Extension [{ID}] Where and What?

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  1. Posts : 15
    Windows 7 Ultimate 64bit
       #1

    Physical Address Extension [{ID}] Where and What?


    In order to enable PAE on a Windoze Seven Pc, they say to do the following:

    bcdedit /set [{ID}] pae ForceEnable

    My problem: What is ID? Where do you get it? Exactly what nfo do they want here.

    I Googled for hours and never found the correct nfo so far. Please and Thank You!

    IMHO
    isepiq
      My Computer


  2. Posts : 12
    Windows 7 Home Premium x64
       #2

    This is way beyond me and you may have already seen this and it might be wrong, but it seems to be similar to what you may be looking for.
    Using BCDEDIT to change and modify Windows Boot Entries - UnlockForUs
      My Computer


  3. Posts : 12
    Windows 7 Home Premium x64
       #3
      My Computer


  4. Posts : 25,847
    Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
       #4

    I don't know if I can help but maybe answering some questions will help us.

    Isepig what are you trying to do with your system to need to change Physical Address Extension?

    Do you have a problem with your system you need help with other than changing Physical address extensions?

    What isn't working properly on your system?
      My Computer


  5. Posts : 2,497
    Windows 7 Pro 64 bit
       #5

    Your profile says you are using 64 bit Windows 7. PAE is for 32 bit systems only and is not supported or needed on a 64 bit OS. On a 32 bit client OS PAE is of very little value. PAE allows accessing more than 4 GB RAM but that is for server operating systems only. If DEP is enabled the PAE kernel will be enabled anyway.

    But on a 64 bit OS you can forget about it.

    Exactly what are you trying to accomplish?
      My Computer


  6. Posts : 25,847
    Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
       #6

    Very good post LMiller.
    That is exactly what I'm trying to figure out and why I asked the questions I did.
    OP's specs.
    OS Windows 7 Home Premium x64
      My Computer


  7. Posts : 15
    Windows 7 Ultimate 64bit
    Thread Starter
       #7

    I am installing an OS, W7 Ultimate, on an x32 HP Computer that comes with 4GB of Memory for a disabled person that lives in our apartments. HP made their computer this way. It has an x32 system and 4GB of Ram. Strange configuration. I just need to know what and where to find the [{ID}] mentioned in Windows Dev Center:

    Physical Address Extension (Windows)

    bcdedit /set [{ID}] pae ForceEnable

    From what I can see on my own computer it might be something similar to the following:

    computer id: D5445892C1B97392EC7819D81C4D9525B433C353

    (Got this from µTorrent log on my system??? Have no idea if this is what the ID should be. If it is, I can temporarily run µTorrent on the neighbors computer to get their ID, if it is the correct NFO???)

    Where and how do I find this on the HP Computer???

    Thank you
    IMHO
    isepiq
      My Computer


  8. Posts : 5,642
    Windows 10 Pro (x64)
       #8

    The ID is the identifier that BCEDIT uses to identify which entry in the list to apply this setting to.

    From BCEDIT's list: (See identifier)
    Code:
    Windows Boot Loader
    -------------------
    identifier              {current}
    device                  partition=C:
    And yes you do need to include the brackets {}
      My Computer


  9. Posts : 12
    Windows 7 Home Premium x64
       #9

    I only have x64 in the house so I can't verify this for you, but from the 1st link I posted for you it says to:
    open a command prompt and use this command
    Code:
    bcdedit /export c:\savebcdentry
    from what I gather it will save a (txt?) file in the c drive with the ID that you can then use for identifying the proper windows installation.

    Here's that link again for more details Using BCDEDIT to change and modify Windows Boot Entries - UnlockForUs
      My Computer


  10. Posts : 2,497
    Windows 7 Pro 64 bit
       #10

    The purpose of PAE is to allow access to RAM with addresses above 4 GB. The problem is that the kernel in all client versions of Windows will ignore all such addresses. So the bottom line is that PAE isn't going to do anything for you. PAE is useful in server systems to access most of the 4 GB and in some editions much more.

    A form of PAE is automatically enabled when DEP is enabled but it seves no other purpose.

    In the early days of XP did support PAE to access RAM over 4 GB. But in further testing Microsoft discovered that many drivers behaved badly in these environments so as of SP1 or SP2 this was no longer supported.

    In all modern client version of Windows setting PAE does essentially nothing.
      My Computer


 
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