The setup media possibly detected the system was previously running a premium business edition such as Windows 7 Ultimate then defaulted to that.
Beware though - unless this is a retail copy of Windows, a new key is required (ie, buy a new one) because OEM copies are tied to the motherboard. Check out this post for useful info on activation: Windows Genuine and Activation Issue Posting Instructions.
You have a couple options. Wattpad soft copies weebly.
If you have your Windows 7 Ultimate product key, you can use that to activate the current Windows 10 Pro installation.
Click Start > Settings > Update & security > Activation > Change the product key then enter the new product key then click Next to Activate
If you are unable to activate Windows 10 after all the above and you are certain you have the correct edition installed, then please attempt phone activation:
If that does not work, you can try downgrading to Windows 10 Home using your install media.
Open Registry Editor(WIN + R, type regedit, hit Enter)
Browse to key HKEY_Local Machine > Software > Microsoft > Windows NT > CurrentVersion
Change EditionID to Home (double click EditionID, change value, click OK). In your case it should at the moment show Pro
Change ProductName to Windows 10 Home. In your case it should at the moment show Windows 10 Professional
Browse to key HKEY_Local Machine > Software > Wow6432Node > Microsoft > Windows NT > CurrentVersion, change the same two values as in steps 3 and 4 above
In other systems supply oxygen to the sewage and biota to create in which the biological component is freely mixed in the liquor in 'flocs'. In some of these systems, a chemically inert medium with very high surface area is provided as a substrate for the growth of biological film. Separation of excess biological film takes place in settling tanks or cyclones. Membrane bioreactor design.
Close the Registry Editor
Insert the Windows 10 Homeinstallation media, do an in-place upgrade by launching the setup from desktop (not booting with Windows 10 Home install media)
When asked, enter your validWindows 10 Home product key and select what to keep(settings, personal files and apps, only personal files or nothing)
Windows 10 Home in-place upgrade will be done now.