Forgot Password on New Windows 8 Lenovo

[User 060]

Sorry for bad english im italian, i try to explain better possible
Help please i bough a new pc for my little brother birthday but after 30 mins i restart it, and now the pc dont let me login because he say i use a wrong password but im sure is the correct, i set only two passwords, one for pc and one for gmail, i try them both but now the pc is blocked and he told me to go on account.live.com for reset the password. I complete the questionary better possible but the pc was simply empty so outlook wont let me reset the password...
The pc is associated to BlackBox@outlook.com a new mail created for it and its a lenovo with windows 8.
I try to download the Hirens Boot how i see in your video and i put it into a usb pen for try to reset anything from windows xp but the pc ignore the pen....
Please help i have 2 days only

[GuiltySpark]

Hello User 060,

Do you log into Win8 via a Microsoft Account or other method?

The reason I ask is because BlackBox@outlook.com is a non valid email address/account.

[User 060]

Im not expert of this things, i just use the normal procedure i think, but 90% probably i use the microsoft account

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When i turn on the pc i have the pc name BlackBox and blackbox@outlook.com  and then the space when insert the password, but is allways wrong...

[Compton]

I am sorry but it sounds like you are trying break in to someone account

I could be wrong

[GuiltySpark]

That mailbox does not exist on MS servers.

Are you sure it is the correct email address?

[User 060]

No dude is my account, i bough the pc with my grandfather 4 days ago but i start use it only yesterday because i was busy, i post a photo of the box and one of what i saw when i turn on the pc.
I called it BlackBox because my little brother is a fan of Halo series and BlackBox is a artificial intelligence in 3 books about the series
Here is the photos
https://i.imgur.com/csDbkDD.jpg
https://i.imgur.com/6tcvWIN.jpg

[GuiltySpark]

Sorry User 060 having site access issues here.

BlackBox@outlook.com doesn't exist on the mailserver, you may have to contact MicroSoft about this to verify the issue, the alternative is to try the password you set up but check for spelling, upper case, lower case, numbers, symbols etc again.

Maybe try here again: https://account.live.com/password/reset
A how to just in case: https://pcsupport.about.com/od/passwords/a/reset-microsoft-account-password.htm

[User 060]

Well was a stupid password used only on this computer so i can tell it.
The password was Chocolate55
I try chocolate55 cHOCOLATE55 and others combinations, but nothing happens.
I cant try to reset password from my cellphone becuse i set my old number because i wont more calls from call centers or other things, i use the number 3288838581 and i skip the confirm. How stupid i am.
By the way, if the email dosent exist how can i login in the computer anyway? I cant reset the password if the email dont exist on MS servers, right?

[GuiltySpark]

You said you also set up a gmail account, have you tried that password on it?

Also please remove the current password from your post above (just in case) for your safety.

Thanks.