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Windows 7: "Secure Boot Violation" Invalid signature detected. Check Secure Boot

23 Apr 2016   #1
texmaster

Windows 7 64
 
 
"Secure Boot Violation" Invalid signature detected. Check Secure Boot

Never seen this message before but I can't get around it. All I did was reboot for a game and this popped up.

I've gone into bios and secure boot is greyed out.

How do I get around this?

Running win 7 64 bit with an Asus x99-A motherboard. Specs updated below


My System SpecsSystem Spec
.
23 Apr 2016   #2
IoNGeNeRaL

Windows 10 Pro x64 (UPGRADED - 10/20/2016)
 
 

What is your BIOS version? Have you flashed it?

Unfortunately as I have lack of experience with such an issue I can only refer you here:
http://answers.microsoft.com/en-us/w...b-301431436265

I am aware it says "Windows 8" but just have a read through it and get back to us.
My System SpecsSystem Spec
23 Apr 2016   #3
texmaster

Windows 7 64
 
 

I haven't flashed it no. I tried the usb flashing but couldn't get it to work. Yeah I saw the same article dealing with win 8.

My biggest problem is that in the bois that secure boot is grayed out so I'm stuck

And I already have Launch CSM enabled
My System SpecsSystem Spec
.

23 Apr 2016   #4
Brds7t7

Windows 7 Pro 64-Bit, Windows 7 Ultimate 64-Bit, Windows 8.1 Pro 64-Bit
 
 

It seems a recent "recommended" update could be the one causing the issue:
https://support.microsoft.com/en-us/kb/3133977
Can you get into the Startup tools at all?
If so you could run system restore to before the update was installed.
I don't use secure boot on Windows 7 so I'm not sure.
Do you have an earlier system image available?
My System SpecsSystem Spec
23 Apr 2016   #5
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

Hi,
Yea although secure boot might be like that you should still be able to see and change OS type to Other OS without any problems.
My System SpecsSystem Spec
23 Apr 2016   #6
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

Hi,
You might even go to the CSM section and make sure or switch between uefi only and or Legacy OPROM only and see if that makes a difference ?
https://rog.asus.com/forum/showthrea...mus-VII-Ranger
My System SpecsSystem Spec
23 Apr 2016   #7
texmaster

Windows 7 64
 
 

Quote   Quote: Originally Posted by Brds7t7 View Post
It seems a recent "recommended" update could be the one causing the issue:
https://support.microsoft.com/en-us/kb/3133977
Can you get into the Startup tools at all?
If so you could run system restore to before the update was installed.
I don't use secure boot on Windows 7 so I'm not sure.
Do you have an earlier system image available?
I can't get past the boot screens. Or should I say the on board RAID screen. Haven't tried booting directly off the CD though.
My System SpecsSystem Spec
23 Apr 2016   #8
texmaster

Windows 7 64
 
 

Quote   Quote: Originally Posted by ThrashZone View Post
Hi,
You might even go to the CSM section and make sure or switch between uefi only and or Legacy OPROM only and see if that makes a difference ?
https://rog.asus.com/forum/showthrea...mus-VII-Ranger

For some reason the link isn't working for me.
My System SpecsSystem Spec
23 Apr 2016   #9
texmaster

Windows 7 64
 
 

I'm uploading some pics now and a short video of what I'm seeing if it helps.

As you can see secure boot is grayed out.

https://www.youtube.com/watch?v=cfMeFcUTLeg



My System SpecsSystem Spec
23 Apr 2016   #10
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

How was win-7 installed by the factory or by you ?

Other os would work if not you'd have to try the CSM section of Boot and switch it to uefi only or Legacy only would apply to if you used Other OS.

Switching to Other os would make the showing of PK State show Not loaded.
My System SpecsSystem Spec
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