Windows 10: How to find out what version OEM license i had on my HP laptop.To downgrade from windows 10...

I accidently upgraded to windows 10 pro and now i want to downgrade it,But i dont remember whether it was Windows 10 home or windows 10 home single language...Since we have to select edition while installing through USB..does anyone have an idea how to find what version my oem license was??

:)

 

How to Windows 10 Pro OEM downgrade to Windows 7 Pro

Understanding downgrade rights
Updated 11/30/2016

Important: the information on this page is intended for system builders and the downgrade rights that apply to their customers. If you are a customer of a direct OEM, please contact your OEM for more information about downgrade rights. If
you are a direct OEM, please contact your Microsoft Account Manager.

Downgrade and down-edition rights are an end-user right that Microsoft offers to customers for certain OEM products which meet the technical requirements for a Windows software downgrade. Downgrade rights are documented in the Microsoft Software License
Terms that customers accept upon first running Windows and Windows Server software. Thanks to downgrade rights, end users who have acquired a later version of the software (such as Windows 10 Pro or Windows Server 2012 R2 Standard) can use an earlier version
of the software until they are ready to migrate to a later version technology.

If a product includes downgrade rights, the license terms for that product will indicate which earlier versions of the software may be used.

Downgrade rights will vary depending on if the software was acquired via volume licensing, OEMs, or full packaged product (FPP).

Downgrade rights for Windows software
The following OEM versions of Windows software are eligible for downgrade rights.

Windows 10 Pro includes downgrade rights to:

• Windows 8.1 Pro
• Windows 7
  
  Professional

Windows 8.1 Pro includes downgrade rights to:

• Windows 7 Professional
• Windows Vista Business

Windows 7 Professional and Windows 7 Ultimate include downgrade rights to:

• Windows Vista Business and Windows Vista Ultimate
• Windows XP Professional, Windows XP Tablet PC Edition, or Windows XP x64 Edition

Note Other OEM Windows 7 versions (for example, Windows 7 Home Basic and Windows 7 Home Premium) do not include downgrade rights.

Note downgrade rights are only available as long as Microsoft provides support for that earlier version, as outlined in the
Windows lifecycle fact sheet.

Steps for an end user to downgrade Windows software

To downgrade eligible Windows software, end users must:

• Purchase a PC preinstalled with Windows software.
• Accept the Microsoft Software License Terms.
• Perform the downgrade process to the eligible downgrade product using the media/key from a genuine, previously licensed OEM or retail product.

The downgrade process

Follow these steps to downgrade to an earlier version of Windows software:

• Use genuine Windows media and a corresponding product key for the version of Windows that is eligible for downgrade. The media/key should come from a previously licensed product from the OEM or retail channel.
• End users who are licensed separately through Microsoft Volume Licensing (VL) may provide their VL media and key to a system builder to facilitate the downgrade on their own systems.
• Insert the downgrade-eligible version of Windows media and follow the installation instructions.
• Enter the product key.
• If the software was previously activated, it cannot be activated online. In this case, the appropriate local Activation Support phone number will be displayed. Call the number and explain the circumstances. When it is determined that the end user has an
  eligible Windows license, the customer service representative will provide a single-use activation code to activate the software. Please note that Microsoft does not provide a full product key in this scenario.
• Activate the software.

For scenarios involving large volume downgrades, end users are encouraged to consider VL which provides the benefits of reimaging rights and volume activation, which can make the process of downgrading much easier.

Authorizing a third party to exercise downgrade rights for an end user

Because downgrade rights apply to end users, they are not designed for third-party facilitation, which has many complications. Also, such facilitation is not suitable for carrying out on a large scale.

 

How to downgrade Windows 10 Pro (OEM) ?

I recently purchased a HP Envy laptop with Windows 10 Pro ( 64bit ) installed. For reasons beyond the scope of this post, I'd like to downgrade it to Windows 8.1 or Windows 7. According the the Microsoft's OEM page on understanding the downgrade rights,
I am eligible to downgrade this OEM build of Windows 10 Pro. But I'm not sure how to go about doing it. There is no "go back to previous version of windows" option in the Control Panel/Recovery Option. The only think I have with me is the OEM license key for
the Windows 10 Pro.

I contacted HP Support, and they actually refused the very claim that I'm even eligible for a downgrade. Upon escalating my issue to a higher level at HP support, they simply threw in the towel and said I should contact Microsoft(!).

So while I'm pretty certain( based on what I have read ) that the OEM build of Windows 10 Pro is eligible for downgrade, I'm really not sure how to go about installing a older version(8.1 pro or 7 pro).

Thank you in advance!

-JasmineJ

 

Change hard drive of Win7 system with Win8 OEM License

You appear to be talking about Downgrade Rights.

Contact Lenovo:

Here is the information about Downgrade rights. It is an old Microsoft link which they removed but the information still apples>

Device Partner Center

Downgrade rights for Windows software
The following OEM versions of Windows software are eligible for downgrade rights.

[table][tr][td]Windows 10 Pro includes downgrade rights to:

• Windows 8.1 Pro
• Windows 7 Professional

[/td][td]Windows 8.1 Pro includes downgrade rights to:

• Windows 7 Professional
• Windows Vista Business

[/td][td]Windows 7 Professional and Windows 7 Ultimate include downgrade rights to:

• Windows Vista Business and Windows Vista Ultimate
• Windows XP Professional, Windows XP Tablet PC Edition, or Windows XP x64 Edition

Note Other OEM Windows 7 versions (for example, Windows 7 Home Basic and Windows 7 Home Premium) do not include downgrade rights.[/td][/tr][/table]

Note downgrade rights are only available as long as Microsoft provides support for that earlier version,
as outlined in the
Windows lifecycle fact sheet.

Steps for an end user to downgrade Windows software
To downgrade eligible Windows software, end users must:

• Purchase a PC preinstalled with Windows software.
• Accept the Microsoft Software License Terms.
• Perform the downgrade process to the eligible downgrade product using the media/key from a genuine, previously licensed OEM or retail product.

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