I've recently traveled to visit my old family, and I had a brother living here which traveled to begin his own life in a different country. He left his computer here and said that anyone could take the computer if they wanted, as in to keep, he took the laptop instead and traveled overseas. The problem I've been facing is kind of irritating, he forgot to remove the administration's password of his own account, and whenever I would want to download or install something, I need his permission of his account's password.
We've called him a couple days ago and he said that he'd forgotten his password. There are two accounts on the computer, one is called his own and the other one is Family. The Family one doesn't have a password, but his account has, and I tried restarting the computer pressing F8/F9 and all that, but different options come. I am not sure which Windows I am using, and I have been very frustrated to use the computer. Is there any way for me to remove the password of the administration? I just want to remove it to download/install programs I need to use.