Windows 10: Update question

Yesterday Windows requested to do an update. I said yes.

This was not a normally scheduled update.

This was on a Samsung Utrabook PC.

After the update it would not accept my password.

It forced me to use my password for my Microsoft Outlook email account.

It rearranged my screen substantially.

Why did this happen?

:)

 

Windows 10 retail license key

I've been looking into possibly getting Windows 10. I found retail license keys being sold on eBay for extremely cheap (under $15). It
seems like there would have to be some issue with these. However, I'm not sure what the problem could be. I've been doing some research. If I understand correctly, if it's retail then it cannot be OEM. Also, if it's retail, I understand it cannot be
a volume license key. From what I understand, it cannot be MSDN, either. If it were simply pirated, then I don't see how it could be activated as they claim it can be. What am I missing? FWIW, it comes from Europe, but claims to be valid worldwide.

(Not linking to the eBay sale as I don't want to "promote" it if there is an issue with it. But what can you suggest to me based on the little info available?)

Edit: A possibility... could it potentially be resold to other parties and activated by them, but then if I reinstall (when enough activations have been done), I will be unable to reactivate again?

 

ipv6 network loss( keeps disconnecting and when i repair says network protocal missing

ipv6 network loss( keeps disconnecting and when i repair says network protocol missing, but under property's it shows ipv 6 checked