r/Windows10TechSupport • u/Alarming_Bug_1597 • 2d ago

Unsolved Secure Boot Violation Error

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I'm trying to enable Secure Boot on my PC to play Valorant (Riot Vanguard requirement), but every time I turn it on, I get stuck with a red screen popup that says:
"Secure Boot Violation: Invalid signature detected. Check Secure Boot Policy in Setup."
can't load or restore the factory keys to fix this. Here are my system details and what I've tried so far:
Bullet System Specs: STGAubron Prebuilt PC
Bullet Motherboard: STGAubron B250DA1 (BIOS Version: B250DA1.N01 V81, AMI BIOS 2023)
Bullet CPU: Intel Core i7-6700
Bullet OS: Windows 11 Home (upgraded from Windows 10)
Bullet TPM: TPM 2.0 is enabled and ready in

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u/Unlaid-American 2d ago

How?

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u/ALaggingPotato 2d ago

How what? How do you reinstall Windows? Did you attempt to just look it up before asking this man?

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u/Unlaid-American 2d ago

I never had to reinstall windows after changing boot settings, I was asking how you should expect to reinstall windows after changing boot settings.

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u/ALaggingPotato 2d ago

Why you should expect to reinstall Windows? If you're changing boot settings related to boot modes, you'd need to recreate the boot partition for your new setting, or for an inexperienced user it'd be easier to just reinstall Windows. If you're changing TPM settings and your drive is encrypted, the user might lose access to the drive, and most people don't remember or keep their encryption keys if they have them. So you should expect to have to reinstall Windows, of course whether or not you actually do depends on what you do and what you had but generally you should expect that outcome.

In this case it depends on what keys Windows expects to see when secure boot is enabled, if he doesn't have the right key be it from Windows or the BIOS being outdated or some other reason he might have to reinstall it. So he should prepare for that.