Windows 10: Convert/upgrade preinstalled Windows OEM to Volume License

Hello to all,
I have a general question.

Is possible to convert or upgrade preinstalled Windows OEM to Volume License?

I purchased my new laptop with Windows 10 Home. How can I upgrade PRO it with Volume License Key without reinstalling the system and programs? I have legal academic VLSC agreement and keys.

I have found this tutorial, but I want to ask you, if it is correct and official way:
How to Convert OEM to Volume License | It Still Works

I have found this related post:
https://answers.microsoft.com/en-us/...5-839996b40d47

You may NOT legally upgrade from Windows 10 Home to Windows 10 Pro using the volume licenses. The only organizations that may do this are academic and nonprofit. Commercial and government can only use volume license SKUs to upgrade from previous business class (Pro, enterprise, etc...) operating systems.

But how? When I do Change product key, system say that is not valid. I am sure that is valid.

I have filled my system configuration in my profile, if necessary.

Thank you,
Jiri

:)

 

Question On OEM Windows clean install......

"Flavors" of Windows licenses

Windows can be a little "odd" about license keys. There are at least 4 categories:

• Retail
• OEM
• Volume (electronic download)
• Corporate (no key needed)

For guaranteed success, the license key and media should be in the same category. If you have retail media, you may not be able to install it using an OEM or Volume license key, even though the key is valid for that version of Windows. *Wtf :wtf: Apparently, this is part of Microsoft's anti-piracy scheme (i.e., all customers are guilty until proven innocent).

 

Upgraded to Windows 10, now it turned into volume license and not OEM

Original title: Windows activation

I have a windows tablet. It was running windows 8.1 pro i upgraded it to windows 10 version 1511 using iso. After installation it turned into volume license not oem and it willexpire in 4 august 2016 . How it is possible from oem license to volume license.

 

Windows 10 Pro Retail or OEM or Volume License

Hi Raju,

This is an interesting topic. If the last three letters of your Product ID ends with
OEM, then your license was issued by manufacturer. These type of licenses cannot be transferred to another computer because it is tied up with the device itself. Otherwise, if it doesn't end with OEM, your copy of Windows is from a retail merchant.
These licenses can be transferred to another computer. Unless your device was issued by your company, or from an organization, then it could have been activated under Volume licensing.

To be sure, check the type of license you that you have by following these steps:

• Open Command Prompt (Admin).
• Type slmgr -dli and press Enter.
• It will show you a pop up box telling you what type of license you are using.

Let us know if you need further assistance.