No F8 boot menu and "Windows 8 cannot verify the digital signature for

KLund1

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No F8 boot menu and "Windows 8 cannot verify the digital signature for winload.exe"

Trying to test win 8 enterprise on a dual boot system with win 7.

Win 7 is on OCZ revodrive PCI SSD, win8 is on a HDD. I get the above error while booting to win8. I can not get to the F8 boot menu to select booting without signatures. win8 boot/install disc repair option does not have 'advanced options' to reboot to safemode boot menu.

Suggestions?

Thanks
 

My Computer

System One

  • OS
    7 x64
    CPU
    i860
    Motherboard
    Gigabyte GA-P55A
    Memory
    G-Skill Ripjaw 1600 6x2gb
    Graphics Card(s)
    xfx gtx260
    Hard Drives
    OCZ Revodrive V1 PCI SSD 74gb,
    WD VelociRaptor 300GB SATA 6.0Gb/s
    WD Caviar Black 2TB SATA 6.0Gb/s
    PSU
    Antec 550w
    Case
    Antec P180 (orgianal)
    Cooling
    Zalman 9700
    Other Info
    Quad boot Win 7 x64 SSD, Win7 x64 Vraptor, XP MCE 2005 SP3, Unbantu Linux 11.1
Did you manage to complete the win8 installation, or is this a reboot as part of installation process?
 

My Computer

System One

  • OS
    7/8/ubuntu/Linux Deepin
    Computer type
    PC/Desktop
The reboot as part of installation process. Never got to a Start screen
Thanks for the quick reply :)
 

My Computer

System One

  • OS
    7 x64
    CPU
    i860
    Motherboard
    Gigabyte GA-P55A
    Memory
    G-Skill Ripjaw 1600 6x2gb
    Graphics Card(s)
    xfx gtx260
    Hard Drives
    OCZ Revodrive V1 PCI SSD 74gb,
    WD VelociRaptor 300GB SATA 6.0Gb/s
    WD Caviar Black 2TB SATA 6.0Gb/s
    PSU
    Antec 550w
    Case
    Antec P180 (orgianal)
    Cooling
    Zalman 9700
    Other Info
    Quad boot Win 7 x64 SSD, Win7 x64 Vraptor, XP MCE 2005 SP3, Unbantu Linux 11.1
You could boot up the install disc - go to Repair my computer , then command prompt ( under advanced options) use note pad or diskpart to find what the win8 install partition drive letter is.

Also find the active partition drive letter.

Active partition might be the 100mb one because you had win7 first - if so , give it a drive letter using diskpart.

Then type:

bcdboot win8letter:\windows /s activepartletter:
 

My Computer

System One

  • OS
    7/8/ubuntu/Linux Deepin
    Computer type
    PC/Desktop
My drive set up is actually a bit more complicated. I'm not sure which active partition to use from which drive. I have several OS's I boot too. all work but win8. I do not want to kill the others just to make win8 work. see below for my set up from Acronis Disk Director.


Capture.JPG

I think bcdboot win8letter:\windows /s activepartletter:
should be
bcdboot G:\windows /s C: ????
or c: might need to be k:? k: has a file called bootsect.bak dated yesterday about the time I installed win8, long with files bootmgr, & bootnxt.
what do you think??
Thanks again for you help
 

My Computer

System One

  • OS
    7 x64
    CPU
    i860
    Motherboard
    Gigabyte GA-P55A
    Memory
    G-Skill Ripjaw 1600 6x2gb
    Graphics Card(s)
    xfx gtx260
    Hard Drives
    OCZ Revodrive V1 PCI SSD 74gb,
    WD VelociRaptor 300GB SATA 6.0Gb/s
    WD Caviar Black 2TB SATA 6.0Gb/s
    PSU
    Antec 550w
    Case
    Antec P180 (orgianal)
    Cooling
    Zalman 9700
    Other Info
    Quad boot Win 7 x64 SSD, Win7 x64 Vraptor, XP MCE 2005 SP3, Unbantu Linux 11.1
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