Access Denied - Error: not possible to create a directory - JRE_LEGACY

What I expected to happen was...:
When clicking start I was expecting to play Minecraft as usual

What actually happened was...:
A message of error saying:

"Não foi possível criar um diretório.
Detalhes do erro: Acesso negado.

Nome do ficheiro no disco: jre-legacy
Caminho: C:\Program Files (x86)\Minecraft Launcher\runtime\jre-legacy\windows-x64\jre-legacy
Existe: Nonexistent"

Steps to Reproduce:
1. I instaled Minecraft from the files I had downloaded when I bought it.

2. Logged in to may account
3. Click Start