Windows 10: Unable to activate Windows

Hi,I'm having some activation issues.Some back story first to explain the issue:I had Windows 7, upgraded it to Windows 10 - never linked it to a Microsoft account, set a PIN locally and a password, this was before the 1803 release, so no security questions.I decided last month rebuild my machine, new MB, CPU.I started getting activate Windows messages, which I expected...but when I tried to activate I was asked for my password...and I couldn't remember what that was faceplam moment...and no security questions means no password reset.Decided to try creating a recovery disk...but this was giv

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Unable to Activate Win 8

I was about to suggest run CMD as Admin and then do a "slmgr -ipk xxxx-xxxx-xxxx-xxxx" activation...does anyone know if that works with win8?

 

Unable to Activate Win 8

I got Win 8 isntalled on my file server, but I am unable to activate it with the key. Says the key is invalid. Since I work at microsoft I got a retail version from the employee store. I have been doing some reading, and to be able to activate Win8 with the key there needs to be a previous version of Windows installed for it to work. WTF, so you can't do clean installs?

And the box says nothing about Upgrade version. Straight Windows 8 Pro.

 

windows xp installation and dual core am

could someone please list the steps they follow to install windows with a dual core processor and windows xp service pack to. I'm reletively new to amd dual core and i feel i'm missing a step. All help will be appreciated. thanx