These BIOS updates patch an Intel security vulnerability:

BIOS 1.19/1.18/1.18 Updates

• Update ME firmware to 11.8.90.3987v9.1 for Intel security vulnerability.

         134-KS-E379-KR - EVGA Z370 Classified K - v1.19
         134-KS-E377-KR - EVGA Z370 FTW - v1.18
         121-KS-E375-KR - EVGA Z370 Micro ATX - v1.18
 
 

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Windows Installation

• Download the correct .zip file above for your motherboard.           

• First go into your BIOS and load defaults, save and exit
• Close all open programs.
• Go into the folder where you unzipped this package and open update.bat
• Press Y to start the flash process
• DO NOT TURN OFF POWER OR RESET DURING THE FLASH PROCESS
• After the flashing is finished, the system will automatically shut down. Then power on again and go into BIOS to setup.
• NOTE: If flash box immediately closes after flash attempt, the flash may need to be ran from a CMD prompt with administrator privileges or DOS version.

  
BIOS Installation

• Extract the contents of .zip file to USB flash drive (must be formatted as FAT32)
• Reboot the machine and go into the system BIOS

• From the BIOS, navigate to the Save & Exit tab and open "Select BIOS File."
• Select the .bin file you wish to flash.

 
Please let me know if anyone runs into problems with this update.  Thanks!

Yep, code 404 .  Same on EVGA drivers and bios support download link .
 
To the moon ... without Intel security patch ...
 

EVGATech_LeeM
Sorry, guys.  Thanks for reporting the issue.  It's fixed now, but if you click the link again right after I post this, give it a few minutes and it should work.

No worry Thanks you and everything good and working to download for my Classy Z370 

Hi there!
 
I've struggled with my FTW Z370 to work with Corsair CMK16GX4M1B3000C15 x 2 (32Gb total) on 3000MHz with XMP , but had no luck. It just didn't work - Code C4 and not starting with two modules installed, only default 2666Mhz. So I got another board (GB aorus z390), installed my i78086k processor and added new 4x32Gb G.Skill RIPJAWS V [F4-3600C18D-64GVK] with no issues. It automatically started at 3600MHz speed and I forgot about problems.
Old FTW Z370 board was installed to old PC case with 2 existing CMK16GX4M1B3000C15 modules and added i3 9100 CPU, just to have a working computer.. I've always wondered if that board could work with 128Gb RAM.
 
Some day I was cleaning the internals from dust and decided to try 4x32Gb set of memory in FTW Z370 motherboard... And, I was shocked when it booted directly to windows , no XMP profile applied automatically though.. I've restarted and booted in BIOS, changed memory profile to XMP 1 DDR-3600 18-22-22-42 -1.35V... and it booted to windows again ))) WТF! FTW!!.. I've tried so many times to get Corsair memory to work on 3000MHz normally, but it always had some issues one or another (if I was to reset it with a button, after doing this I had to remove 1 ram stick to boot and set speed manually, reboot, turn off and then add second ram stick to then boot with both of them to windows).
 
My question is - is it a programming issue? BIOS issues? The only odd thing was that 128Gb RAM in FTW Z370 needed more time to boot (somewhat like 30 seconds, changing numbers on the post screen several times).
 
https://dropmefiles.com/214173   (updated link) - here are some pictures of the system.

EVGA Z370 Classified K 
I have tested that in some cases the tpm module disappears after a reboot, this does not always happen, but often.
resetting to factory settings and switching the bios to another does not solve the problem, updating it too, I am on the latest 1.19 and tried to update it, which did not solve the problem.
maybe you tell me to delete it and reboot (I've already done that) disappears completely randomly after some reboots
if you just turn off the computer with 100% probability it will be in place.
I assure you I have no problems with drivers.
the problem is clearly in the bios, I am on Windows 11 Pro 22H2 22621.963
 
this prevents windows 11 from receiving fresh operating system updates, in some cases
 
Windows was also reinstalled, does not affect the TPM, also disappears on reboot
 

Z370 Micro / Bios V.1.18
TPM2.0 function and secure boot are available in the above BIOS.