Windows 11 Pro installation failures on the Asrock Z790 PG Lightning motherboard typically stem from Secure Boot misconfigurations, missing VMD storage drivers, or incorrect BIOS boot modes. This guide details the precise UEFI settings and driver injection methods required to resolve these common blockers, ensuring a successful OS deployment without hardware compatibility errors.
Verifying UEFI Settings for Compatibility
The Asrock Z790 PG Lightning is designed with modern security features that Windows 11 strictly enforces. Before attempting installation, you must ensure the firmware is configured correctly. Enter the BIOS by pressing
F2 or
Delete during startup. Navigate to the
Security tab and locate
Secure Boot. It must be set to
Enabled. If it is disabled, the installer will reject the drive immediately. Additionally, check the
CSM (Compatibility Support Module) setting. For Windows 11, CSM should be
Disabled to force pure UEFI mode. Legacy BIOS mode is not supported by Windows 11 and will cause installation loops or hidden partition errors. Save changes and exit before proceeding.
Addressing Intel VMD Storage Controller Issues
A frequent culprit for "No Drives Found" errors on Z790 platforms is Intel Volume Management Device (VMD) technology. The standard Windows 11 installation media often lacks the specific drivers needed to communicate with the NVMe SSD when VMD is active. You can verify if VMD is enabled in the BIOS under the
Advanced >
SATA Configuration or
Storage Configuration menu. If VMD Controller is set to
Enabled, you have two options. The first is to disable VMD entirely, switching the SATA mode to AHCI. This allows Windows to detect the drive natively but may impact RAID configurations if you plan to use them later. The second, more robust option is to load the driver during setup. Download the latest Intel RST (Rapid Storage Technology) drivers from the Asrock support page for your specific model. Extract the files to a folder on your installation USB drive. When the installer reaches the disk selection screen, click
Load Driver and point to this folder. Once loaded, your NVMe drive should appear correctly.
Creating a Clean Installation Media
Corrupted or incomplete installation media can lead to cryptic error codes during the initial phases of setup. Use the official Microsoft Media Creation Tool to build a fresh USB installer. Ensure you are using a USB drive with at least 8GB of space and format it as FAT32 or NTFS depending on your system's requirements. Some users report better success with Rufus if the Microsoft tool fails, specifically selecting the
DD Image option for compatibility with older UEFI implementations, though the Z790 platform generally handles standard ISOs well. Verify the checksum of the downloaded ISO against Microsoft’s published values to rule out download corruption. A clean image ensures that no pre-existing registry conflicts or file system errors interfere with the new installation.
Resolving Network and Peripheral Conflicts
During installation, Windows attempts to connect to the internet to fetch updates and license verification. On some Asrock boards, the Realtek Ethernet controller or Wi-Fi adapter may not initialize properly during the OOBE (Out-of-Box Experience) phase, causing the process to hang or timeout. Disconnect all non-essential peripherals, including external hard drives, webcams, and secondary monitors. Connect only your keyboard, mouse, and display. If using Wi-Fi, consider using an Ethernet cable for a stable connection during the initial setup. If the network step fails, you can bypass it by entering
OOBE\BYPASSNRO in the command prompt at the network selection screen. This forces the local account creation path, allowing you to complete the installation offline and install drivers afterward. Refer to our analysis on
USB Wired Keyboard Not Working Properly Anymore on HP Premium Keyboard for Windows 11 PC for broader insights into peripheral initialization issues that might mimic installation hangs.
Post-Installation Driver Management
Once Windows 11 is installed, the next critical step is driver management. While Windows Update will handle basic components, chipset, audio, and LAN drivers are best sourced directly from Asrock. Visit the Asrock support site, enter your motherboard model, and download the latest INF drivers, Audio drivers, and LAN drivers. Install these in order: Chipset/INF first, then Audio, then LAN. This sequence ensures that the operating system recognizes the hardware buses correctly before assigning resources to specific devices. Failure to update these drivers can result in unstable performance, lack of power management features, or unrecognized network interfaces. Always create a system restore point after installing major drivers to allow rollback if instability occurs.
Checking Firmware Updates
Motherboard BIOS versions released early in a product's lifecycle often contain bugs related to memory training or PCIe lane allocation. Check your current BIOS version against the latest release on the Asrock website. If an update is available, use the Q-Flash utility within the BIOS to flash the new firmware. This process requires a FAT32-formatted USB drive containing the BIOS file. Updating the BIOS can resolve subtle compatibility issues with newer CPUs or DDR5 memory kits that might otherwise cause installation crashes or post-boot bluescreens. After flashing, reset CMOS settings to default to ensure stability.
Managing Dual-Boot Scenarios
If you are installing Windows 11 alongside another operating system, such as Linux, partition management becomes crucial. Ensure that the EFI System Partition (ESP) is large enough, typically 512MB or more, to accommodate multiple bootloaders. Mismanagement of the ESP can lead to one OS overwriting the bootloader of the other, resulting in boot failures. Be cautious when resizing partitions using Windows Disk Management, as it lacks advanced recovery capabilities compared to tools like GParted. For detailed guidance on managing storage across different environments, see
USB Keyboard Stops Responding Randomly During Dual-Booting Debian 12 and Windows 11.
Final Verification Steps
After installation, run the DirectX Diagnostic Tool (
dxdiag) and System Information (
msinfo32) to verify that all hardware components are recognized. Check the Device Manager for any yellow exclamation marks, which indicate missing or faulty drivers. Run a quick stress test using built-in Windows tools or third-party software to ensure thermal throttling is not affecting performance. If issues persist, review the Event Viewer logs for kernel-power errors or storage-related warnings. These logs provide specific error codes that can pinpoint whether the issue is hardware-related or software-driven.
Frequently Asked Questions
Why does my Asrock Z790 show "No Drives" during Windows 11 setup?
This usually happens because Intel VMD is enabled, and the standard Windows installer lacks the necessary storage drivers. You must either disable VMD in the BIOS to switch to AHCI mode or manually load the Intel RST drivers from a USB drive during the installation process.
Can I install Windows 11 without an internet connection on this motherboard?
Yes. At the network selection screen during setup, press
Shift + F10 to open a command prompt and type
OOBE\BYPASSNRO. Press Enter, and the system will restart, giving you the option to create a local account instead of requiring an online Microsoft account.
Is Secure Boot mandatory for Windows 11 on Asrock motherboards?
Yes, Secure Boot is a strict requirement for Windows 11. You must enable it in the BIOS under the Security tab. Additionally, ensure that CSM (Compatibility Support Module) is disabled to maintain full UEFI compliance, which is necessary for the OS to function correctly.
How do I update the BIOS on an Asrock Z790 PG Lightning?
Download the latest BIOS file from the Asrock support website and save it to a FAT32-formatted USB drive. Restart the computer, enter the BIOS by pressing
F2, select the Q-Flash utility, choose the BIOS file from the USB drive, and follow the on-screen prompts to flash the firmware. Do not interrupt power during this process.
What should I do if Windows 11 fails to activate after installation?
Ensure that your motherboard is connected to the internet so it can communicate with Microsoft servers. If you have a digital license linked to your Microsoft account, sign in to Windows with that account. For OEM licenses tied to the motherboard, activation should occur automatically once the system detects the valid hardware signature and internet connectivity.