Windows 10: Activation windows 10 after resetting the windows

Hello.
I received my laptop last night but the windows has a problem so I had to reset the windows from setting/update & security/recovery/reset this pc.
But after the resetting, windows is not activated.
What should I do?
before resetting the Product ID in setting/update & security/activation was 00326-10115-15718-AA158 and the Product key was XXXXX-XXXXX-XXXXX-XXXXX-2DKQV
but after resetting the Product ID is 00325-80000-00000-AAOEM and there is no Product key.
Please help me.

:)

 

Windows 10 Tweaks

Pressing “Windows+Pause Break” (it’s up there next to scroll lock) opens the “System” Window.

Windows 10: In the new version of Windows, Explorer has a section called Quick Access. This includes your frequent folders and recent files. Explorer defaults to opening this page when you open a new window. If you’d rather open the usual This PC, with links to your drives and library folders, follow these steps:

• Open a new Explorer window.
• Click View in the ribbon.
• Click Options.
• Under General, next to “Open File Explorer to:” choose “This PC.”
• Click OK

credit to Lifehacker.

 

Windows 10 Activation (Insider)

How long did you wait for activation?
When I re-installed with a fresh install... it took a few hours to sync and activate.
However, it did, finally, activate.

 

DOWNLOAD WINDOWS 10 NOW - Upgrade and ISO direct from microsoft

Click to expand... Yeah I went to that site, why do I need to buy a key?
I won't buy a key, stupid.

I'll revert back to windows 7 then.

When I still was on windows 7, about a year ago I added 4GB extra ram which is a total of 8GB now,
is that causing the problem?