How do I install a clean Windows 10 Pro without the need to upgrade an existing OS?

I currently run Windows 7 Pro but I have it had for a long time and the disk is very cluttered and it seems to get slower every day.

Instead of using the free upgrade to Windows 10 that is being offered, I want to format my disk and install a full, clean version of Windows 10 Pro.

How do I do this?  Do I have to buy the DVD?  Aren't they only available to OEMs?
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Kyle AbrahamsSenior .Net DeveloperCommented:

You can upgrade and then tell it to perform a clean install.  Kind of backwards but at least it's free.
JohnBusiness Consultant (Owner)Commented:
It would be a good idea to reinstall Windows 7 before embarking on Windows 10. I am running Windows 10.

First, make sure your computer is new enough (< 3 years old) and has Intel graphics or has Windows 10 Drivers for the computer you have.

If you do not have a recovery partition or recovery DVD's, you can try the following (since you are willing to do a fresh install).

Uninstall all software (Office, Adobe and so on).
Open cmd.exe with Run as Administrator and run SFC /SCANNOW twice. Close out, shut down and start up.
Then go to: and install Windows 10.
Gary CaseRetiredCommented:
One of the options when you do the free installation of Windows 10 is how much to keep ==> if you answer NOTHING then it will do a clean install of the OS.    Be sure, of course, if you do this that you've (a) backed up all of your data; and (b) have the installation media for any programs you use [Office, Photoshop, Quicken, etc.]
10 Tips to Protect Your Business from Ransomware

Did you know that ransomware is the most widespread, destructive malware in the world today? It accounts for 39% of all security breaches, with ransomware gangsters projected to make $11.5B in profits from online extortion by 2019.

A new method has become public. Please read no_need_for_a_full_upgrade_to_install_10
In short: start the media creation tool on win7 and create a win10 ISO with it. Mount that ISO (let's assume it mounts to e:). Then just copy e:\sources\gatherosstate.exe to a writable directory, launch it and get GenuineTicket.xml there!
Then you can clean install (skipping product keys when asked)
When it's completed, put the file GenuineTicket.xml into c:\programdata\microsoft\windows\clipsvc\genuineticket\ on your new installation and reboot.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
KhaiPiAuthor Commented:
Sorry for the delay but this method worked well -thanks.
ReeceICT ConsultantCommented:
Is there any confirmation that the 1511 build of Win10 (a.k.a TH2) will allow a clean install of Windows 10 with activation using a genuine Win7/8/8.1 product key of the same edition?

See (in particular Activation Changes)

If it works, it means upgrade-then-clean-install isn't needed.  Nor will messing about with xml files in the ISO.
JohnBusiness Consultant (Owner)Commented:
Once Windows 10 has been installed and activated initially (even if it has issues), a fresh install can be initiated with the Media Creation link I posted (which is pretty much the same as the accepted solution).
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Windows 10

From novice to tech pro — start learning today.