eria bastante interesante cambiar todo un SO (y las aplicaciones creadas para trabajar con ella) a una Ubuntu o mejor a un Windows.. .... .... ....

No te enteras, siginifa que en los PC solo podrá correr windows.

Secure boot

The UEFI 2.2 specification adds a protocol known as Secure boot, which can secure the boot process by preventing the loading of drivers or OS loaders that are not signed with an acceptable digital signature. When secure boot is enabled, it is initially placed in "Setup" mode, which allows a public key known as the "Platform key" (PK) to be written to the firmware. Once the key is written, secure boot enters "User" mode, where only drivers and loaders signed with the platform key can be loaded by the firmware. Additional "Key Exchange Keys" (KEK) can be added to a database stored in memory to allow other certificates to be used, but they must still have a connection to the private portion of the Platform key.[24] Secure boot can also be placed in "Custom" mode, where additional public keys can be added to the system that do not match the private key.[

y segundo esto del Secure Boot es peor porque hay distros que no se van a poder instalar en las maquinas que lo tengan activado segun tengo entendido hasta ahora.