You should have a try to solve the problem you are facing. After disabling Driver Signature Enforcement, you can install drivers that aren’t officially signed. Solution 4: Disable Driver Signature Enforcementĭriver Signature Enforcement helps to prevents malware from attacking the Windows kernel as it ensures only drivers that have been sent to Microsoft for signing will load into the Windows kernel. For more detailed steps about how to change the setting, you can visit your PC manufacturer’s website. Then save the changes and reboot the computer. You need to switch it to IDE option to disable AHCI mode. Please enter BIOS and navigate to the settings like Storage controller setting, SATA Mode, or SATA Configuration, and you should be able to find the options for “AHCI”, “IDE”, “RAID” or “ATA” mode. To solve the problem, you should disable AHCI mode in BIOS by changing it to IDE mode. If your controller is set to AHCI in BIOS, you could encounter “a required CD/DVD drive device driver is missing” error. In some cases, the drive you are using may be incompatible with the Microsoft AHCI driver (msahci.sys). After you install your Windows 7, you can set USB 3.0 Configuration in Pre-OS back to Enabled. You should be able to install windows 7 successfully without running into a required CD/DVD drive device driver is missing error. Once it’s done, you can plug your Windows 7 installation USB back into the computer and boot from it to install Windows 7. Step 4: Save the changes you have made and exit BIOS. Step 3: Locate the USB 3.0 Configuration in Pre-OS setting and change the status to Disable or Auto. Step 2: After you get into BIOS, select System Configuration. When the manufacturer’s logo appears, you will be noted how to enter BIOS or Setup. Step 1: Disconnect the Windows 7 installation USB and then restart the computer.
To solve the “a required CD/DVD drive device driver is missing” error, you can try changing the BIOS settings for USB 3.0 support during startup to AUTO or Disable. It defines whether the USB ports on the computer function as USB 3.0 or 2.0 ports, before the computer boots into the operating system.Īs we know, Windows 7 installation media doesn’t support for USB 3.0. There is a setting named USB 3.0 Configuration in Pre-OS in BIOS of many computers. Read More Solution 2: Change the USB Settings in BIOS
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