my minecraft launcher doesn't install all version of minecraft i can only use forge 1.10 because is the only version that was "saved" by minecraft

Nome: 1.12.1-pre1.jar
URL: https://launcher.mojang.com/mc/game/1.12.1-pre1/client/c1448a29036f20c03557720eb1754feab15e7f5d/client.jar
Dettagli dell'errore: Attempting to move successful download to C:/Users\Giorgio\AppData\Roaming\.minecraft\versions\1.12.1-pre1/1.12.1-pre1.jar Impossibile accedere al file. Il file � utilizzato da un altro processo
Nome file su disco: 5cd1-0c4c-8126-6eef
Percorso: C:\Users\Giorgio\AppData\Local\Temp\5cd1-0c4c-8126-6eef
Esiste: file