Precision 5510 computers configured with two storage devices. Precision 7710 computers configured with two storage devices. Manually installing the IRST driver as indicated in the workaround below. Precision 7510 computers configured with two storage devices. This issue is seen using Dell Windows 7 media on the following models: Computer Note: If Windows installation media is in the CD/DVD drive, you can safely remove it for this step." If you have a driver floppy disk, CD, DVD, or USB flash drive, please insert it now. You may receive an error message: " A required CD/DVD drive device driver is missing. When you attempt to install Windows 7 Professional on a Precision 3510, 5510, 7510, 7710, T3420, T3620, Latitude E5570, E5250, E5450, E5550 computer with Dell Windows 7 media. If the installation complains about your DVD drive while installing from a USB memory stick, try and disconnect the DVD drive before installing the OS.A Required CD or DVD Drive Device Driver is Missing Error
If you have any USB devices (besides your memory stick, mouse and keyboard) connected to your computer, disconnect them before installing the OS. If that doesnt work, change it back to AHCI.
Check if your disk is configured to AHCI mode, if that doesnt work, try IDE/compatibility mode. press F12 or whichever key it is on your system to boot to you USB device when you want to install the OS. Maybe you have some trouble in your BIOS configuration as well? Check the boot order, you want your harddisk to be first there. Wouldnt want you to loose important documents, family photos etc. However, you need to make sure you have a complete backup of whatever data you have on your old installation first. What happens when you try to install Windows 7 from a USB memory stick? Guides on how to make a USB memory stick into a bootable Windows 7 installation medium: or Personally I perfer a clean install whenever I want to install a new operating system, which means I would format the system partition.
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