Solution when installing WIN7 prompts "Lack of required CD/DVD drive device driver"

Description of the problem: When installing win7: "There is a missing CD/DVD drive device driver." …………” Then find the entire hard drive/disc and can't find the right driver, the installation can't continue.

There are not many people who use the CD-ROM drive to install the system. The simplest method is to install the WINDOWS7 operating system through the U disk. In the actual operation process, we use the most tools of UltraISO. The current version should be 9.5. By inserting a USB flash drive, then in the UltraISO boot tab, we choose to write to the hard drive to make the USB drive WINDOWS7 installation disk we want. However, in the actual operation, we will encounter a more troublesome problem: the lack of the required CD/DVD drive device driver, then our installation is no way to continue as shown below:

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In fact, from the surface, it seems like he is prompted, it may be a lack of drivers, but it is not, this is Microsoft's prompt Misleading us, we can look at the following picture

After clicking the button, we will see the above picture. In the above picture, we can clearly see the partition of the hard disk, then Proof is not a driver problem, but in this window, the careful friends should be able to see the situation, first buy a Guan. At this time we have no way to continue the installation, what should we do? At this time, we turn off the interface in the above picture to find the driver, we will return to the installation interface, and then press Shift+F10 at the same time, then the command window will pop up, as shown below:

In this interface, press Shift+F10 at the same time, the following window appears

We use the hard disk partition command provided by WINDODWS 7: diskpart to view our drive situation, first in the default window In the input: diskpart Enter, mentioned below

Then enter: list disk Enter, the picture below

We found in this window I also saw the hard disk. This is the same as the one sold above. We found the same problem, that is, we didn’t see the USB flash drive we inserted. Is this why he suggested that the CD/DVD is not driven? Now the problem is found. Because we did not find the U disk, it is a good solution. We know that the installation of the windws 7 system is to first load a WIN7 PE ​​system to boot the installation. This PE system is the kernel of WINDOWS7, and we use the U disk to boot successfully. He may not recognize the U disk, the reason may appear USB U disk in the recognition of the PE system, this is the same as the problem we usually encounter with the U disk in the computer, the solution is very simple: the U disk is pulled out and re-inserted, no mistake, right? So simple? Yes, & ldquo; You really didn't get it wrong, as long as 998, as long as 998, the laptop took home & rdquo; joking, yes, it's that simple, by this method, I am on my DELL desktop and HP 8530W All the notebooks passed the test, but before they all appeared, they could not find the driver and could not be installed with the U disk. The effect is as follows, see our cute installation interface

Some friends are sure that they still don't believe it. I think the picture above is cut from another machine. We can confirm that my solution is not empty. In the above picture, we point : Load the driver, the following window will pop up, and we still press shift+F10 to bring up the command window. Use the LIST DISK of the diskpart command to see that we can see that the magic change is coming. Before re-inserting the U disk: There is no U disk drive letter, M:

After re-plugging the U disk: There is a U disk drive letter, M:

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Before re-plugging the USB flash drive: The drive that the list disk command has viewed has only one hard disk with a capacity (other ones are empty, there is a built-in 4-in-1 card reader in my computer)

After re-plugging the USB flash drive: the list disk command shows that the drive has more disk 5, and has a capacity of 3827M. This is the USB flash drive (the other ones are empty, there is a built-in 4 in my computer).

Finally, take a photo: before re-plugging the USB flash drive:

After re-plugging the USB flash drive, we You can see the drive

Summary: I have searched Baidu and GOOGLE. I have not found that I can really solve this problem because the lack of drivers can cause the WINDOWS7 system to continue to be installed. So I started to find a solution. The process was very hard. The result was very unexpected. I just didn't expect it to be so simple. But this is a simple one. I will install WINDOWS7 for the U disk, and then completely drive the CD-ROM into death row. The perfect ending. The optical drive 88, and the CD-ROM drive, don't install WINDOWS7 because of the lack of drivers. Note: If the USB flash drive is usb3.0 interface, it may still be unrecognizable. You can't continue the installation. Plug the USB flash drive into the usb2.0 interface and it will be installed smoothly. My desktop is like this.