Digital signature is blocking install

Discussion in 'Windows 7' started by adrian2055, Dec 7, 2019.

  1. adrian2055

    adrian2055 MDL Member

    Apr 21, 2010
    191
    15
    10
    I'm trying to install Windows 7 via usb flash drive, but setup hangs up because one of the files is not passing windows digital signature. Is there a way to bypass this? I only have win 7 on a flash drive and I can't get into windows. I do not have anything on disc.
     
  2. BetADNA

    BetADNA MDL Junior Member

    Jul 26, 2015
    99
    82
    10
    #2 BetADNA, Dec 7, 2019
    Last edited: Dec 7, 2019
    I think that was it:

    1. While booting your PC/laptop, you need to press “F8” key continuously to access the “Advanced Boot Options”.
    2. Navigate the option “Disable Driver Signature Enforcements” and press “Enter” to confirm the action.
    3. Now the OS will automatically boot with enforcements being disabled.

    Is there a WIndows Install or a installed windows OS on that stick?
    This procedure is for an installed windows..

    Im not shure how you would fix something like this on an install medium.. Maybe make a new install usb?

    I hope this will help..

    best regards

    edit: sounds to me that the "Install Medium" (usb Stick) has "a" or more bad files..
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  3. John Sutherland

    John Sutherland MDL Addicted

    Oct 15, 2014
    867
    1,388
    30
    Hello @adrian2055 - If you're having problems installing Windows 7 on a machine that originally came with Windows 8, 8.1, or 10 installed, go into the machine's BIOS settings and check for two things:

    1.) Secure Boot is disabled.
    2.) Legacy/CSM Boot is enabled.

    NOTE: On my own HP laptop, the Windows 7 installation medium isn't even recognized in the boot menu until I change the above settings. I get no error messages at all.

    After checking those two things, try booting the machine with your Windows 7 installation medium. If it boots successfully, there is one more thing to do. On the second screen you come to, there is an option to "Repair Your Computer" located in the lower left corner of the screen. Select it, and navigate to the screen that contains the Command Prompt. Open the Command Prompt, and enter the following commands:

    1.) diskpart ### Invoke the diskpart command
    2.) list disk ### Lists all disks connected to the machine
    3.) sel disk 0 ### Select disk 0 as the target disk. IMPORTANT: Disk 0 is the default selection if there is only one hard dive connected to the machine. HOWEVER, if you have more that one hard drive connected to the machine, make sure to select the correct disk as the target, because you will lose all your data on the disk in the next step!
    4.) clean ### Removes the existing partition table on the disk, whether it's GPT or MBR
    5.) convert mbr ### Initialize the disk as MBR
    6.) exit ### To exit diskpart command
    7.) exit ### To exit Command Prompt

    Now reboot and install Windows 7.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  4. pf100

    pf100 Duct Tape Coder

    Oct 22, 2010
    2,069
    3,447
    90
    So you added unsigned drivers to the ISO?
    Start over with a clean iso and extract your drivers to a folder
    Download Winreducer and install all 3rd party software it requires. Look in the howto.pdf
    Put the drivers in the winreducer drivers folder (work\integrate\drivers\x64).
    Run winreducer. After you mount your iso, you will be taken to the options and features screen. You will see presets, appearance, features at the top of the screen.
    Leave all options alone EXCEPT the drivers location under System. Change that to x\WORK\INTEGRATE\DRIVERS\x64. Dont forget to change the x to your proper location. Check the "unsigned driver" box
    Click finish. Save as iso. Apply. It will save the modified iso into the winreducer folder.
     
  5. adrian2055

    adrian2055 MDL Member

    Apr 21, 2010
    191
    15
    10

    I tired the suggestions posted and sadly they did not work. I discovered that unsigned usb 3.0 drivers were added into the ISO file and that was the screw up. I finally used someone else's computer to get the win7 ISO from Microsoft and tried it...still didn't work. I had to choice but to return to windows 8.1.
     
  6. adrian2055

    adrian2055 MDL Member

    Apr 21, 2010
    191
    15
    10
    Thanks for all the replies and suggestions.
     
  7. pf100

    pf100 Duct Tape Coder

    Oct 22, 2010
    2,069
    3,447
    90
    It sounds like you're giving up too soon. The winreducer method I posted recently worked to include unsigned ATI Mobility Radeon HD4250 graphics driver to a clean windows 10 ISO so I could install it to a Dell Inspiron M5030 Laptop that just showed a black screen otherwise because windows 10 doesn't support Radeon HD4250 graphics. Winreducer is not the only method to inject drivers into an ISO but I don't see how it didn't work. Anyway, good luck.
     
  8. Joe C

    Joe C MDL Guru

    Jan 12, 2012
    3,522
    2,093
    120
    #10 Joe C, Dec 9, 2019
    Last edited: Dec 9, 2019
    That's odd because I just installed Windows 10 (1903) on a desktop pc yesterday, with a Biostar A880GZ using an AMD FX4100 cpu and this board uses AMD's 4250 on board graphics. It installed with no problems, after it booted it also updated the AMD Radeon 4200 gpu all by itself.
    I think it has more to do with Dell's proprietary hardware more than Windows 10 drivers
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  9. pf100

    pf100 Duct Tape Coder

    Oct 22, 2010
    2,069
    3,447
    90
  10. Joe C

    Joe C MDL Guru

    Jan 12, 2012
    3,522
    2,093
    120
    #12 Joe C, Dec 9, 2019
    Last edited: Dec 9, 2019
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  11. erpsterm35

    erpsterm35 MDL Expert

    May 27, 2013
    1,857
    1,714
    60
    what kind of USB 3.0 drivers were added onto that ISO, adrian2055?
     
  12. adrian2055

    adrian2055 MDL Member

    Apr 21, 2010
    191
    15
    10
    My guess is that they drivers were modified to work with windows 7 instead of the drivers that you can download from AMD or Intel.
     
  13. Reducer

    Reducer MDL Junior Member

    Jul 30, 2014
    51
    69
    0
    How did you disable driver signing during windows 10 installation?
     
  14. pf100

    pf100 Duct Tape Coder

    Oct 22, 2010
    2,069
    3,447
    90
  15. Reducer

    Reducer MDL Junior Member

    Jul 30, 2014
    51
    69
    0
    Ok, so you mean that WinReducer not only integrated the unsigned drivers, but it also disabled somehow OS driver signature checking during OS setup in order to allow driver installation. I will try to find out how. Could you link to the used unsigned x64 ATI Mobility Radeon HD4250 driver?
     
  16. pf100

    pf100 Duct Tape Coder

    Oct 22, 2010
    2,069
    3,447
    90