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Technically you've updated the BIOS, it's asking to continue, which then will reboot and update the UEFI firmware. Click OK.

Updating the CyberpowerPC/ASrock B360M Xtreme board BIOS to 4.20 FWIW, you can upgrade your CyberpowerPC/ASrock B360M Xtreme board BIOS to the latest AsRock version of 4.20, simply download: https://download.asrock.com/BIOS/1151/B360M Pro4(4.20)WIN.zip Then unzip, once unzipped, edit and save the file: ASROM.ini to represent the following: [ROM] File=B360MP44.20 [AFUX86] Path=AfuWin\AfuWin32 Program=AFUWIN.exe Param=/CAPSULE /B /P /N /L /X [AFUX64] Path=AfuWin\AfuWin64 Program=AFUWINx64.exe Param=/CAPSULE /B /P /N /L /X Once the aforementioned file has been edited/saved, start the the update process by running "ASROM.exe", select Y to complete the UEFI reboot update and wait; the system will update and reboot accordingly. As for potential catches, first, the boot-up logo "CYBERPOWERPC" will be replaced with "ASrock", lastly, it's likely that CyberpowerPC will void your board(s) warranty, although you can convert back to the original OE BIOS if needed (I'll write a follow-up on the reversal) and finally the name of the board will change to "ASrock B360M Pro4". Lastly, this has only been tested on the CyberpowerPC/ASrock B360M Xtreme board (not the B360) found in the GXiVR3800WST model, although the ASrock B360M Xtreme board was used in other models; I'd suggest confirming with HWiNFO. Why update the BIOS to 4.20, first, it was recommended by ASrock for anyone upgrading to a 9th gen. CPU, secondly, CyberpowerPC has basically stated that their OE version of the BIOS will end of life at version 4.10. It's your call, while it's an older motherboard, it's remains viable and ASrock is still providing BIOS updates, as well the ASrock applications become viable, such as AsRock A-Tuning and AsRock APP Shop, found here: https://www.asrock.com/mb/Intel/B360M Pro4/index.asp#Download A-Tuning is moderately useful for OC/Fan tuning and the APP Shop was useful for updating drivers without manual download/installation methods being a necessity. USE AT YOUR OWN RISK! I've updated/reversed/re-updated two (2) of my own CyberpowerPC/ASrock B360M Xtreme boards without incident, it would have been three, however the last one came with an ASUS board. Please understand this method is simply bypassing the ROMID verification and if you attempt to flash an incorrect board, it could lead to a brick.

Updating the CyberpowerPC/ASrock B360M Xtreme board BIOS to 4.20 FWIW, you can upgrade your CyberpowerPC/ASrock B360M Xtreme board BIOS to the latest AsRock version of 4.20, simply download: https://download.asrock.com/BIOS/1151/B360M%20Pro4(4.20)WIN.zip Then unzip, once unzipped, edit and save the file: ASROM.ini to represent the following: [ROM] File=B360MP44.20 [AFUX86] Path=AfuWin\AfuWin32 Program=AFUWIN.exe Param=/CAPSULE /B /P /N /L /X [AFUX64] Path=AfuWin\AfuWin64 Program=AFUWINx64.exe Param=/CAPSULE /B /P /N /L /X Once the aforementioned file has been edited/saved, start the the update process by running "ASROM.exe", select Y to complete the UEFI reboot update and wait; the system will update and reboot accordingly. As for potential catches, first, the boot-up logo "CYBERPOWERPC" will be replaced with "ASrock", lastly, it's likely that CyberpowerPC will void your board(s) warranty, although you can convert back to the original OE BIOS if needed (I'll write a follow-up on the reversal) and finally the name of the board will change to "ASrock B360M Pro4". Lastly, this has only been tested on the CyberpowerPC/ASrock B360M Xtreme board (not the B360) found in the GXiVR3800WST model, although the ASrock B360M Xtreme board was used in other models; I'd suggest confirming with HWiNFO. Why update the BIOS to 4.20, first, it was recommended by ASrock for anyone upgrading to a 9th gen. CPU, secondly, CyberpowerPC has basically stated that their OE version of the BIOS will end of life at version 4.10. It's your call, while it's an older motherboard, it's remains viable and ASrock is still providing BIOS updates, as well the ASrock applications become viable, such as AsRock A-Tuning and AsRock APP Shop, found here: https://www.asrock.com/mb/Intel/B360M%20Pro4/index.asp#Download A-Tuning is moderately useful for OC/Fan tuning and the APP Shop was useful for updating drivers without manual download/installation methods being a necessity. USE AT YOUR OWN RISK! I've updated/reversed/re-updated two (2) of my own CyberpowerPC/ASrock B360M Xtreme boards without incident, it would have been three, however the last one came with an ASUS board. Please understand this method is simply bypassing the ROMID verification and if you attempt to flash an incorrect board, it could lead to a brick.