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Invalid signature detected. Check secure boot policy in setup.

jjar35
By jjar35
in Troubleshooting
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So I was playing DCS (digital combat simulator) and my game crashed. The program closed [sort of] and I just had a completely black screen with no kind of input control. So I pressed the restart button and the BIOS option popped up, and I let it run - expecting a normal boot - NOPE! I got a red box that says “invalid signature detected. Check secure boot policy in setup.” I’ve never even heard of this screen before and my computer has been running normal in the 5 years since I’ve built it. The only thing I’ve done to it is add a NVME M.2 drive about a month or so ago but it’s run and booted properly since. My computer is my life blood, between work and play so I’m really hoping it’s an easyish fix 😅

Intel i7-5820k OC'ed to 4.2GHz @1.225 V; w/ Corsair H110i GTX; 2x Asus Strix 980ti's; Asus Rampage V Extreme; 16GB (2x8GB) Crucial Ballistics GDDR4 RAM; EVGA 1000P2 psu

http://www.3dmark.com/3dm/8608142 boost clock of 1493MHz

https://pcpartpicker.com/user/jjar35/saved/#view=ghCWGX + 43" 4k Vizio M-Series TV

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Try check your Boot setting or disable Secureboot.

| Intel i7-3770@4.2Ghz | Asus Z77-V | Zotac 980 Ti Amp! Omega | DDR3 1800mhz 4GB x4 | 300GB Intel DC S3500 SSD | 512GB Plextor M5 Pro | 2x 1TB WD Blue HDD |
 | Enermax NAXN82+ 650W 80Plus Bronze | Fiio E07K | Grado SR80i | Cooler Master XB HAF EVO | Logitech G27 | Logitech G600 | CM Storm Quickfire TK | DualShock 4 |

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