How To Install Driver Files

Posted By admin On 23/08/21

The EXE file installs the driver for you If a driver downloads as a.ZIP file: Extract the content and save to a folder on your Desktop. Open the folder and look if there's a Setup.exe file If you. Install Unsigned Drivers by Enabling Test Mode. Another way to install unsigned drivers is to enable the test mode in Windows 10. The good thing about this method is that it will stay enabled until you manually turn it off – a pretty useful way if you are testing different drivers.

Learning has never been so easy!

Recently I came across a problem when attempting to install Windows 7 onto a Dell Precision 7710. I would boot up with a DVD that had an .iso image of Windows 7 installed on it, but when after clicking the install windows button, I would get a notice that the installer couldn't locate the CD/DVD driver and I needed to browse to locate it. Well, I thought I would be smart and instead do the install via a USB device. Same error. Well, how does this make sense? It's asking for a DVD driver when using a USB device. That's like your car throwing a CEL for the carburetor not working when you're using fuel injection.

This issue is caused because the installer media doesn't have a driver to install through a USB 3.0 port. You might ask, well why did the DVD drive throw the error? Well, that's because the DVD drive was an external because there is no internal DVD drive on this model laptop. So I now know my problem. USB 3.0 drivers need to be added to the boot media. Follow this guide and I'll show you how to accomplish this using the CMD line and the DISM utility.

9 Steps total

Step 1: Download the USB Drivers

Now, I had all intention of describing this how-to specifically for adding USB 3.0 drivers, but it can also be used for adding any number of drivers to the boot media as well.

First thing you're going to do is to download the USB drivers from either your computer's manufacturer or from your motherboard's manufacturer. With the Dell Precision 7710 I went to, punched in my service tag number and proceeded to download an entire driver pack in .CAB format.


Step 2: Extract the drivers

Depending on the type of file you downloaded, it could be an .exe, a .cab, or a .zip, so you'll need to unzip the drivers out of this file. Driver files are historically mainly .inf files, but you don't need to pick and choose the individual files because this next process makes it automatic for you. The DISM (Deployment Image Servicing and Management Tool) is smart and will automatically grab the correct files.

1. Create a folder on your desktop named 'Drivers'.
2. Create two folders inside of the 'Drivers' folder, 'mount' and 'USB'.
3. Extract or copy/paste the driver files directly into the 'USB' folder. I used 7-zip to extract my driver files directly into the 'USB' folder.

Step 3: Cut the 'boot.wim' and 'install.wim' files

Locate these two files from within your boot media. This is easy if you are using a USB drive instead of a DVD, so that you don't have to reburn the DVD once we finish modifying these files.

Example: If the USB drive is plugged in and has been given drive letter 'P:' you will locate the 'boot.wim' and 'install.wim' files within the path: P:sources

It is best to just cut them out of the install media, but if you want to have a backup copy you can copy and paste. You are pasting into the 'Drivers' folder on the desktop. Just make sure to overwrite the old files with the new updated ones once we're finished with this process.

Step 4: Open up CMD prompt as Administrator and navigate to the 'Drivers' folder on the desktop

Windows 7:
1. Start, type in cmd, right click on the icon and choose Run as Administrator
Windows 8:
1. Windows Key + Q
2. Move mouse to top right corner and search, type in Command Prompt, Right click and Run as Administrator.

How To Install Driver Files Manually

Next, you will need to change the directory path so that it isn't pointing to the default of C:WindowsSystem32.

Type in: cd C:Users%currentuser%DesktopDrivers - Then press Enter.
*Note: Make sure to change the %currentuser% to that of the user profile where the 'Drivers' folder was saved.

Step 5: Update the 'boot.wim' file.

In the cmd line now displaying the cd pointing to the right directory, type in these commands pressing enter after each one.


dism /mount-wim /wimfile:boot.wim /index:2 /mountdir:mount
Explanation: This command mounts the boot.wim file, index points it to the correct boot parameters for the correct OS, and /mountdir:mount points it to mount the file to the 'mount' folder we created in this directory earlier.

dism /image:mount /add-driver:'USB' /recurse
Explanation: This command automatically grabs the driver files that it locates in the 'USB' folder that we created earlier and copied the drivers to. This can take a while depending on the number of driver files that it locates.


dism /unmount-wim /mountdir:mount /commit
Explanation: This command unmounts the boot.wim file and saves the information. Think of this as a file transfer/compression process.

Step 6: Determine which index you're going to update the driver files for on the 'install.wim' file

This process wasn't necessary on the 'boot.wim' file, but it is in the 'install.wim' file. Each version of Windows can have a specific index number and we will need to locate which one it is in order to issue the command for the version of Windows you plan on installing. This is specific to the install media you are using because some install media only comes with one version of Windows 7, such as Professional, but some others may have multiple version of Windows 7, such as Home, Ultimate and Professional, just to name a few.

Issue the following command to determine what your version is:

dism /Get-WimInfo /WimFile:install.wim

You'll see in the screenshot that I have an index of 1.

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Step 7: Update the 'install.wim' file.

How To Install Cab Driver Files Windows 10

You should still be pointed to the correct directory, so now issue the following commands to update the 'install.wim' file, using the index information you got from the step above.

dism /mount-wim /wimfile:install.wim /index:1 /mountdir:mount
Explanation: All exactly the same as the boot.wim file command, except the index is the only difference.

dism /image:mount /add-driver:'USB' /recurse

dism /unmount-wim /mountdir:mount /commit

Step 8: Cut/Paste or Copy/Paste your new 'boot.wim' and 'install.wim' files

Since I used the Cut/Paste method to remove these two files from the P:sources location, I'm going to do the same to remove them from the C:Users%currentuser%DesktopDrivers folder and place them back into the P:sources folder.

Wait for the transfer to finish. This is going to take a little bit longer to copy back over to the flash drive because the files going back in are larger than they were before due to the driver files that you've added to it.

Step 9: You're Done!

Take out the flash drive and pop it into the machine you want to reinstall Windows 7 on. You should now find that you no longer receive the pesky CD/DVD driver missing notice.

Install Driver From Cab File Windows 10

Thank you all for reading through this. These commands can be adapted to suit whichever folder names you want to use. Good luck!

Published: Jan 20, 2016 · Last Updated: Nov 06, 2017


  • Thai Pepper
    Capef3ar Jan 28, 2016 at 06:39pm

    Nice read - haven't run across this yet but good info to have just in case. Thanks!

  • Tabasco
    bethernet Mar 17, 2016 at 10:56pm

    THANK YOU! I only wish I had found this 3 hours ago.. It worked exactly as your directions said it would, and Windows 7 is installing now!

  • Pimiento
    jimnowotny Apr 4, 2016 at 02:48pm

    Thanks! The problem with an older OS and really new hardware.

  • Pimiento
    hmasri Apr 13, 2016 at 05:28am

    If its just USB 3.0 drivers for Win7 you want ..


  • Sonora
    MrMcG33k Jun 7, 2016 at 04:26pm

    Thank You! I just ran into this issue and this resolved my problem!

  • Pimiento
    nicoserup Jun 10, 2016 at 08:43pm

    Question for point 6:
    In my Windows image, I have unlocked all the versions, so which one should i pick?
    - I haven't tried the guide yet though.

  • Poblano
    palehmkuhl Jun 13, 2016 at 01:22pm

    Choose whichever version that you plan on installing Windows with.

  • Pimiento
    nicoserup Jun 16, 2016 at 02:41pm

    It doesn't work for me yet.
    In my version I have unlocked all of the versions, starter to ultimate.
    I chose to mount it to proff.
    But when i boot, I never get as far as to choose which windows version I want, before the message: Missing CD/DVD comes.

  • Poblano
    palehmkuhl Jun 16, 2016 at 03:16pm

    Ok, so you're booting into the Windows ISO using your image on a bootable USB drive and that's when you're getting the message about it missing the CD/DVD drive. Sounds like something didn't go as planned if you did the process I outlined above. Either that or the driver that you added to the USB drive isn't the right one for that computer.

  • Pimiento
    scotthowell Jun 16, 2016 at 03:39pm

    For some reason I'm unable to mount the install.wim. When i try to run dism /mount-wim /wimfile:install.wim /index:1 /mountdir:mount I get an error: 5 'access is denied' error no matter which index I use.

  • Poblano
    palehmkuhl Jun 16, 2016 at 04:14pm

    Did you run the command line as an administrator during this process?

  • Pimiento
    scotthowell Jun 16, 2016 at 05:53pm

    Yes, and the boot.wim worked just fine. I am using a Dell proprietary Win7 installation image, though.

  • Poblano
    palehmkuhl Jun 16, 2016 at 06:02pm

    That might have something to do with it. I used a Win7 image that I downloaded from the Microsoft VLSC website. Generic. I don't believe this process is restricted to specific images, but you want to have the access to modify files in those directories. Try using a different Win7 bootable and see if you get different results.

  • Pimiento
    mikemccormack Jun 20, 2016 at 04:45pm

    Excellent KB..worked flawlessly - thank you for posting this!

    Have a great week!

  • Pimiento
    christernordell Jun 29, 2016 at 03:35pm

    scotthowell: I experienced the same problem getting error 5 when mounting install.wim. Found out its McAfee that is blocking, see Deactivate McAfee during the mounting of install.wim solved the problem for me.In my case I had a rule that stopped handling .scr files and the mounting stopped when it reached the file bubbles.scr.

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