Razer Blade 15" Base (2018) | RZ09-02705) - Secure Boot Violation "Invalid Signature Detected" when enabling Secure Boot | Razer Insider
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Razer Blade 15" Base (2018) | RZ09-02705) - Secure Boot Violation "Invalid Signature Detected" when enabling Secure Boot

  • September 6, 2026
  • 2 replies
  • 33 views

Razer Blade 15 Base Model (2018)

Model: RZ09-02705E76
Serial No.: (removed for security purposes)
BIOS: 1.01
Windows 11

Issue:

I need Secure Boot enabled because Riot Vanguard (Valorant) reports VAN9003.

When Secure Boot is disabled, Windows boots normally.

When Secure Boot is enabled, the laptop immediately displays:

"Secure Boot Violation
Invalid signature detected.
Check Secure Boot Policy in Setup."

The error appears before the Windows logo or spinning circle appears.

Diagnostics already completed:

• UEFI mode enabled
• TPM 2.0 healthy and enabled
• Windows 11 healthy
• BitLocker disabled
• SFC /scannow clean
• Microsoft Boot Manager in use (\EFI\Microsoft\Boot\bootmgfw.efi)
• EFI partition healthy
• EFI partition contains only Microsoft and Boot folders
• No Linux, GRUB, Clover, Acronis, Macrium or other third-party bootloaders present
• Secure Boot variables PK, KEK and db are all present and readable from Windows
• Secure Boot databases appear to be enrolled and the system reports User Mode when Secure Boot is enabled

Because Secure Boot cannot be enabled, Riot Vanguard reports VAN9003 and Valorant cannot be played

This topic has been closed for replies.

2 Replies

  • ajilong
  • Insider Mini
  • September 19, 2026

I have the same problem. I am communicating with Razer Support about it but I thought: let’s check in the community if there is somebody else with the same problem and with a solution listed.  I have currently checked about 5-10 threads and as soon as Razer responded no solution is shown. I haven’t come across any user who offered a solution either.   

Razer.ScarletRouge
Forum|alt.badge.img

​Hey there, ​@MoHID28 

 

I have replied to your private message. Please check your inbox and provide the requested information so I can continue assisting you there.


Also, I noticed that you've posted about the same issue in a different thread. Just a friendly reminder to try and keep the same issue to one thread to prevent any confusion and speed up the resolution process.

Additionally, I have edited your post and removed your device's serial number for security purposes. If you have any questions, please send me a PM, and I'll be glad to assist you further. Thanks for understanding!

 

 

*Thread locked to curb conversation to PM.

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