Upgrade a Windows 7 disk to Windows 10

I have a clean install of Windows 10 on one disk drive.  I have Windows 7 with all my programs on another disk.  I want to upgrade the Windows 7 hard drive to Windows 10 and then clone that hard drive to over-write my clean install.  How do I do that?  Sorry.  It is Friday and my brain is not functioning to its max capacity.
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CompProbSolvConnect With a Mentor Commented:
John makes a good point about a clean install vs. upgrade.  

If you do want to upgrade, it's fairly straightforward.  Download the Win 10 ISO (Download Tool Now at https://www.microsoft.com/en-us/software-download/windows10 ), mount it, and run it.  I'd highly recommend a complete backup of your drive before doing this.  Occasionally there are problems that make it unbootable.

I'm assuming that you have a proper license for Windows 10.
JohnBusiness Consultant (Owner)Commented:
Windows 7 may not be a good candidate for upgrading (drivers and old software). So I do not recommend this at all.

Recover your data from the Windows 7 disk , install new software versions of what you have on the Windows 10 Machine and recover your data.

In addition the Windows 10 license to do what you are suggesting is not free and I think is around $150
JohnConnect With a Mentor Business Consultant (Owner)Commented:
I would be concerned at bringing over old software, drivers and maybe problems to a well functioning system. That is why I do not recommend it.

You cannot use the Windows 10 license in the clean system to also upgrade the other one, so there would be a duplicate cost of licensing.
CompProbSolvConnect With a Mentor Commented:
As far as licensing goes, it sounds as if he'll wipe out the clean install of Windows 10 when he copies the upgraded disk to it.  If that is the case, it should be as legal as the existing Windows 10 installation is.  Of course, EE is not the place to determine whether or not something is legal!
aclaus225Author Commented:
Thank you. It seems as if I won't get around just re-installing everything.
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