It is prompting for IDE controller driver.
Find it on your maker's Support Downloads page for your exact model of computer or mobo (if Custom build). Unzip the driver or chipset onto flash stick or CD and browse from link until it picks up driver.
First though you might try Pauly's advice to try boot installing from flash stick: USB Windows 7 Installation Key Drive - Create
Sometimes a flash stick can boot by just formatting stick Primary FAT32 in Disk Management and sliding DVD files onto it, then look for stick under HD's on Boot Menu, accessed by key given on first bootup screen or by entering BIOS to set stick first to boot.