Windows 10: i have a new computer, I need to unlink my old one from my laptop to give it to a college...

I just got a new desktop computer. It is linked to my laptop. I need to completely restart/wipe the old one so I can give it to a friend. How do I do that without affecting my laptop I dont want to lose anything from the laptop. Will be linking the new one to the my laptop

:)

 

Unlink an old android phone from my pc

I go thru the suggested steps: Start - Settings - Phone - Unlink this PC.

When I first open the "your phone" screen the old phone is listed. Not sure if the phone listed is suppose to be selectable or not, but my is not. When I select "Unlink this PC" the phone listed is removed. When I select "Add Phone" the old phone still
shows. I have removed the old phone from my Microsoft Account. I have rebooted after unlink this pc but I still cannot remove my old phone.

 

Remove and replace old college Microsoft account from laptop

I purchased a laptop in college and set up using my college Microsoft account. That account no longer exists. I am trying to disconnect it from my laptop, but it requires a password. I do not know that password, and the account doesn't technically exists anymore so I cannot reset that password. I tried going to the command prompt and deleting it from accounts, but there is says "Microsoft can't delete an account that is already signed in." I tried setting my new microsoft account up as an admin and it still won't let me delete the old one. Is there a way to fix this? I am running Windows 8

 

New laptop for college

For notes i would suggest this one:
http://www.amazon.com/dp/B003DZ1Y8Q/?tag=tec06d-20
A laptop is simply ridiculous, seriously.