Ola Pedro,
Segue link abaixo:
http://www.windowscentral.com/how-upgrade-32-bit-64-bit-version-windows-10
ou
https://www.howtogeek.com/228042/how-to-switch-from-32-bit-windows-10-to-64-bit-windows-10/
Espero que te ajude.
Vinicius Mozart || MVP - Cloud and Datacenter Management || vinicius.mozart@terra.com.br || http://www.wenz.com.br || Skype:vinicius.mozart