So the other day I had a laptop that I bought on Ebay that had Windows 10 on it. This laptop came from Arizona and I live in California. I did a USB fresh install of Windows 11 and deleted all partitions before I started. There were 3 total with one large C drive. I hit New and it created a smaller partition. As soon as got Windows 11 up and running I had to go to my Yahoo mail for an important email. I went to Yahoo, Yahoo Mail and it had a person that I knew in my town with his name was in the sign in box. I hit next and his password showed up. I looked at the password with the eyeball and saw the password. I went into the Inbox and it was all this person's stuff. He is a chiropractor up here that I know. I signed out and cleared out all cookies to get rid of his name on this computer. This was very science fiction to me because I never even knew his email address and I had did a fresh install. This was never his laptop either. Anyone know what happened here?