Secure Boot

macjim

Bronze Level Poster
My new baby

PC2.JPG


I posted this "problem" to the internal PCS tech support web page last Thu (25/6), it's been read but no reply after a week. Thought I'd try for a faster response from this board :)

I upgraded to Windows 10 Ver. 2004 a couple of days after getting the new PC, I found my Wireless Xbox 360 controller wasn't recognised. I had the same problem In my previous PC, running Ver. 1909, previously I was able to force Windows to check it's stored drivers to use a suitable driver for the controller.

This method did not work on Ver. 2004. But I did find a method which altered the MS driver for the controller, but as the driver was no longer digitally signed I had to turn on/off the test signing mode e.g.

bcdedit /set testsigning on

But I had to turn off secure boot to do this.



I did this and the controller now works, but when I turned secure boot back on I noticed the values had changed for DBX e.g.

From:

PK Management | 886 | 1 | Default
KEK Management | 3573 | 3| Default
DB Management | 6322 | 10 | Default
DBX Management | 4040 | 83| Mixed

To:

PK Management | 886 | 1 | Default
KEK Management | 3573 | 3| Default
DB Management | 6322 | 10 | Default
DBX Management | 3724 | 77| Default

The PC boots normally and has no issues.

Found this for the Keys meaning:

The Platform Key (PK) establishes a trust relationship between the platform owner and the firmware (UEFI BIOS) by controlling access to the KEK database. ... The KEK consists of a list of public keys that can be checked against for authorization to modify the whitelist database (DB) or blacklist database (DBX)

Not sure why DBX changed, I have added to the system-> 2x 2TB HDD disks + 500GB 850 EVO M.2 SSD


Do I need to change the values in secure boot back to the original values, if so how?

Can't add my spec in the same email, must be too large

Thanks
Jim
 

macjim

Bronze Level Poster
Case FRACTAL FOCUS G BLACK GAMING CASE (Window)
Processor (CPU)AMD Ryzen 7 3800X Eight Core CPU (3.9GHz-4.5GHz/36MB CACHE/AM4)
MotherboardASUS® TUF X570-PLUS GAMING (USB 3.2 Gen 2, PCIe 4.0, CrossFireX) - RGB Ready!
Memory (RAM)16GB Corsair VENGEANCE DDR4 3600MHz (2 x 8GB)
Graphics Card6GB NVIDIA GEFORCE GTX 1660 SUPER - HDMI, DP - GeForce GTX VR Ready!
1st Storage DriveNOT REQUIRED
1st M.2 SSD Drive500GB SEAGATE FIRECUDA 520 GEN 4 PCIe NVMe (up to 5000MB/R, 2500MB/W)
DVD/BLU-RAY Drive16x BLU-RAY WRITER DRIVE, 16x DVD ±R/±RW & SOFTWARE
Power SupplyCORSAIR 750W RMx SERIES™ MODULAR 80 PLUS® GOLD, ULTRA QUIET
Power Cable1 x 1 Metre UK Power Cable (Kettle Lead)
Processor CoolingCorsair H100i RGB PLATINUM Hydro Series High Performance CPU Cooler
Thermal PasteSTANDARD THERMAL PASTE FOR SUFFICIENT COOLING
Sound CardONBOARD 6 CHANNEL (5.1) HIGH DEF AUDIO (AS STANDARD)
Wireless/Wired NetworkingWIRELESS INTEL® Wi-Fi 6 AX200 2,400Mbps/5GHz, 300Mbps/2.4GHz PCI-E CARD + BT 5.0
USB/Thunderbolt OptionsMIN. 2 x USB 3.0 & 2 x USB 2.0 PORTS @ BACK PANEL + MIN. 2 FRONT PORTS
Operating SystemWindows 10 Home 64 Bit - inc. Single Licence [KUK-00001]
down_right_arrow.gif
Change to: Windows 10 Professional 64 Bit - inc. Single Licence
Operating System LanguageUnited Kingdom - English Language
Windows Recovery MediaWindows 10 Multi-Language Recovery Image - Unlimited Downloads from Online Account
Office SoftwareFREE 30 Day Trial of Microsoft® Office® 365 (Operating System Required)
Anti-VirusNO ANTI-VIRUS SOFTWARE
BrowserFirefox™
Warranty3 Year Silver Warranty (1 Year Collect & Return, 1 Year Parts, 3 Year Labour)
DeliveryTIMED DELIVERY TO UK MAINLAND - MON-FRI (BEFORE 2PM)
Build TimeStandard Build - Approximately 12 to 14 working days
Welcome BookPCSpecialist Welcome Book - United Kingdom & Republic of Ireland
 

ubuysa

The BSOD Doctor
I'm not particularly well clued up on the innards of UEFI, but I wonder whether the DBX has changed because you now have an unsigned driver on your system?
 

macjim

Bronze Level Poster
I'm more used to dealing with ye olde MBR than UEFI, but I thought about the driver changing the key.

I don't think it's an issue, more a point of interest.

Thanks for the feedback :)
 
Top