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Downgrade 8 to 7 on Acer Aspire AXC-603G-UW31 I Need Help!

  1. #81


    Posts : 3
    Windows 8.1


    [SOLVED]

    Hello everybody.
    I have an Acer Aspire XC-603 i3900 with bios P11-B0 on it.
    I also want to downgrade to Windows 7 and i follewed B from start to end.
    I downloaded the file and right-clicked de flash.bat file as an administrator.
    The command promt flash up for 1 seconds and nothing happened.
    So i opent another coomand promt and dragged the flash.bat file into it and pressed ENTER.
    From that point it only stated to count some memory adresses and that was it.
    But the BIOS was still the same.
    I mis all the function`s in the bios that i can turn off or on to install Windows 7.
    I have no CSM,Legacy etc etc setting`s, its not there.
    Only thing i can do is to Enable/Disable secure boot.

    Is there another way to force bios to flash?
    I have Windows 8.1 pre-installed from factory and the right-click and execute option said in Option B is not working at all.
    Please i can use some advise.
    Last edited by Mshraks; 17 Sep 2014 at 09:41.

      My System SpecsSystem Spec

  2. #82


    Posts : 12
    Windows 8.1


    Latest BIOS P11-B2 (09/17/2014) should now have CSM option. Give that a try and let us know if it works.

    http://global-download.acer.com/GDFi...C=ACER&SC=PA_6

    Acer | Download

    EDIT: Confirmed CSM option is restored and functions properly in this B2 version on a Win 8 system. Nobody has tried it yet when installing a Win 7 system.
    Last edited by mdavej; 21 Sep 2014 at 19:15.
      My System SpecsSystem Spec

  3. #83


    Posts : 18
    Winodws


    I just got an Acer AXC-603G-UW30 and i need the file to flash so i can downgrade to windows 7.
    All the links above in this thread to the a4l BOIS files are dead can someone please post it somewhere and send me a link.

    My Acer will not boot to anything but the main windows 8 drive, i can not get it to boot from the DVD\CD and USB is not even listed. The Boot menu F12 only shows the HDD and i can't set the Priority of the DVD drive it is not listed. I have no CMS option in the BIOS even after i disabled the Secure Boot. My system came with BIOS P11-A2

    mdavej
    I may try that if i can't find the a4l files, but i think some people above stated that the newer BIOS files are even worst and more locked down.

    Thanks Rainey

    EDIT: The links for the files did work i had Firefox noscript running and i had to enable the web page. So files are there and worked to flash the bios. Loading win 7 now. Thanks to poster
    Last edited by Rainey222; 20 Sep 2014 at 14:28.
      My System SpecsSystem Spec

  4. #84


    Posts : 12
    Windows 8.1


    Quote Originally Posted by Rainey222 View Post
    I may try that if i can't find the a4l files, but i think some people above stated that the newer BIOS files are even worst and more locked down.

    Thanks Rainey
    They were, until this latest one that specifically says it enables CSM. This BIOS is newer than any of those posts. I really think its worth a try.
      My System SpecsSystem Spec

  5. #85


    Posts : 18
    Winodws


    I found the BIOS files on another thread, but not sure what i will do yet. I was trying to make an image of the factory drive (without any luck) before i did any thing. So i need a 16GB USB stick it seems to make a recovery boot drive as that is all this PC seems to support.

    I bought this PC for a WMC pc because my main PC was windows 8.1 and my Ceton Echos won't work with it, i did not know i had to jump through hoops to load win7 on it. I thought in a few hours i would have a windows 7 MC setup but that is not going to happen with this PC.
      My System SpecsSystem Spec

  6. #86


    Posts : 12
    Windows 8.1


    Yes, I did exactly the same thing as you several weeks ago. But I simply removed the original hard drive and set it aside as my backup. In its place I put an SSD and a much larger hard drive for recordings (unplugged the optical drive). I have a house full of Echoes too.

    Older posted BIOS works fine. But I thought this one would be better. I just loaded it on my Win 8 machine and it works as advertised. You can disable secure boot then enable launch CSM, just like in the old BIOS.
      My System SpecsSystem Spec

  7. #87


    Posts : 18
    Winodws


    Quote Originally Posted by mdavej View Post
    Yes, I did exactly the same thing as you several weeks ago. But I simply removed the original hard drive and set it aside as my backup. In its place I put an SSD and a much larger hard drive for recordings (unplugged the optical drive). I have a house full of Echoes too.

    Older posted BIOS works fine. But I thought this one would be better. I just loaded it on my Win 8 machine and it works as advertised. You can disable secure boot then enable launch CSM, just like in the old BIOS.
    Interesting, i may try that. I want to do the same thing SSD and large Hard drive in CD bay after i install windows 7. The person who started this thread had the CMS option but it still would not let her boot from CD or install windows 7, but she was not running that new BIOS. I just hope if i install that new BIOS that is will not lock me out from down grading to the old hacked BIOS somehow. I just might take the old BIOS method as it is known to work., seems i am chicken on trying the new BIOS.
      My System SpecsSystem Spec

  8. #88


    Posts : 12
    Windows 8.1


    You should be ok. But I definitely understand your apprehension.

    I left the CD drive in place (in case I ever wanted to temporarily reconnect it) and simply slipped the SSD in on top of it. Perfect fit.

    If anyone else gives this a try please post back.
      My System SpecsSystem Spec

  9. #89


    Posts : 18
    Winodws


    Well i flash the PC with the older BIOS A4l and it loaded win 7 just fine. Loaded some driver and all seem well, but have a few issues with USB ports turning off at the logon screen when USB 3 mode is enabled after i loaded a USB drivers, have to check if i installed the correct ones.

    I see other threads where people have installed a newer BIOS that has CMS enabled but they get error during the windows 7 install and it never completes, so not sure the 9-17 bios release will work, but if anyone trys it please report the out come.
      My System SpecsSystem Spec

  10. #90


    Posts : 12
    Windows 8.1


    Found more confirmation directly from Acer that B2 BIOS does indeed fix CSM, enabling Win 7 boot.
    Re: Brand New Aspire XC-603G (ACX-603G-UW31). Wind... - Page 6 - Acer Community

    That post mentions possible HDMI audio issues if CSM is enabled. I've not experienced any such issues.

    I would like to know where the Win 7 drivers posted in this thread originally came from. A similar Acer model perhaps? It would be nice to know, in case the OP every takes them down. Anybody know?
      My System SpecsSystem Spec

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Downgrade 8 to 7 on Acer Aspire AXC-603G-UW31 I Need Help!
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