Trying to install Win 7 Pro on Laptop through USB drive

I have 2 Dell Laptops that do not have DVD players.  I need to reinstall the Operating system which is win 7 pro.
I am using the Microsoft USB download tool and I am using a 64 bit windows ISO
Everything install perfectly and gets all the way down to where it says its completing and then suddenly it stops saying that this version of windows is incompatible.

Does any one have any ideas how to fix?
JohnnyIT Consultant!Asked:
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JohnBusiness Consultant (Owner)Commented:
You probably need the Dell Recovery USB as it is probably missing drivers.

I do assume the Dell machines came with Windows 7 in the first place and not Windows 10. You cannot go backward from Windows 10.
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Wayne88Commented:
It's not a driver issue.  The error specifically stated "this version of windows is incompatible".  You're using a Windows version the laptop is not licensed for (e.g. you downloaded a retail Windows image instead of OEM).

Download the image directly from DELL.

https://www.dell.com/support/article/us/en/04/sln299044/how-to-download-and-use-the-dell-os-recovery-image-in-microsoft-windows?lang=en

https://www.dell.com/support/article/us/en/04/sln298442/how-to-create-and-use-the-dell-recovery-restore-usb-drive?lang=en
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JohnnyIT Consultant!Author Commented:
I'll check it out.  Sound pretty damn legit.  I'll let you know tonight my outcome!!
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Wayne88Commented:
Ok, good luck and let us know how it goes.
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Dr. KlahnPrincipal Software EngineerCommented:
The Dell "Skylake" ISO is the most recent version available for W7.  The site below has very good instructions on how to install using a USB drive.

http://dellwindowsreinstallationguide.com/download-dell-skylake-windows-7/

Side note:  I was never able to get W7 to install from USB using the Microsoft USB download tool.  However, Rufus (as cited on the link above) works well.

The ISO can be modified to install other versions.  If this is done pre-install then the installer will install whatever version of W7 the system's BIOS license is for.  That will at least get you up and running and you can then later do a Windows in-place upgrade.
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JohnBusiness Consultant (Owner)Commented:
Skylake is for Windows 10 normally.  Johnny - did this computer come with Windows 10?
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nobusCommented:
it can help if you post the dell model
i recently used the dell  image download, and it worked perfect; but it lets you only install the Original OS

if you want another os - it can be necessary to change the bios to Legacy
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Lee W, MVPTechnology and Business Process AdvisorCommented:
What MODEL of Dell Computer.  Newer systems do not support Windows 7.  You might need to install using an Updated image that includes Windows Updates (build a reference computer using a volume license based image, update it fully, capture, then deploy).
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JohnBusiness Consultant (Owner)Commented:
I'll let you know tonight my outcome!!

It is now the next day. Can you please let us know what operating system came with this computer?  As myself and others have already noted, if it came with Windows 10, you cannot go backward.
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JohnnyIT Consultant!Author Commented:
To all,

thank you.  "I am sorry I" did not get back to each of you individually.  I am always on the move as I am sure you all can appreciate.
I kind of figured that dell might have a solution.  I had no idea how I would locate it.  

Many thanks one and all
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Wayne88Commented:
Thanks for getting back and good luck!
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