Acer Aspire laptop from windows 8.1 to 7 install problem

men6
men6 Member Posts: 4 New User
in 2015 Archives

I did buy an Acer laptop with Windows 8.1 installed. I have software which runs only under windows 7 so I need to downgrade the laptop to windows 7. At least I tried but the laptop doen's reboot anymore.


I see 5 partitions:

Schijf 0 Partititie 1: Recovery 600 MB available 306 MB (OEM gereserveerd)

Schijf 0 Partititie 2: ESP 300 MB available 246 MB (Systeem)

Schijf 0 Partititie 3: 128 MB available 306 MB (MSR gereserveerd)

Schijf 0 Partititie 4: 449,6 GB available 306 MB (Primair)

Schijf 0 Partititie 5: Push Button Reset 600 MB beschikbaar 306 MB (OEM gereserveerd)

I removed Partititie 4 and created a new one. Installing windows 7 works but after reboot It stops and I got an error message:

One pager story about recently changed software...with below:  file:\windows\system\winload.efi
status: 0xc0000426. The digitale signature of this file can't be checked

Which partition can/should I remove without running into troubel to be able to install windows 7 succecfull?

Thanks for your help!

Gr. Men

Answers

  • IronFly
    IronFly ACE Posts: 18,412 Trailblazer

    have you set, on BIOS, legacy instead of UEFI and disabled secure boot?

    I'm not an Acer employee.
  • men6
    men6 Member Posts: 4 New User

    Hi can't change secureboot. Can't get there with my cursor.

     

    I switched to legacy but gor error messages during install of windows. "not able to install windows. selected disk has GPT-partitionstyle.

  • IronFly
    IronFly ACE Posts: 18,412 Trailblazer

    ok, revert to UEFI and follow this guide to install windows 7 under UEFI:

    http://www.sevenforums.com/tutorials/186875-uefi-unified-extensible-firmware-interface-install-windows-7-a.html

    I'm not an Acer employee.
  • men6
    men6 Member Posts: 4 New User
    Hi,

    Got some progress but still running into trouble.
    Managed to switch off secureboot, install windows 7 and boot without error messages. The problem now is the laptop freezes on "windows starting" same story if i boot in windows safe mode.
  • IronFly
    IronFly ACE Posts: 18,412 Trailblazer

    UEFI or Legacy installation?

    I'm not an Acer employee.
  • men6
    men6 Member Posts: 4 New User
    UEFI
  • IronFly
    IronFly ACE Posts: 18,412 Trailblazer

    Have you any USB device connected?

    probably there's some hardware conflict.

    check if pressing windows key logo + d or ALT+TAB, any popup confirmation prompt is in the background.

     

    i would also try to install under Legacy but keep in mind you need to convert HDD from GPT to MBR and you can face some hardware/drivers issue.

     

    some hardware is not compatible with windows 7.

     

    I'm not an Acer employee.

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