Device encryption helps protect your data by encrypting it. Only someone with the right encryption key (like a password) can decrypt it.
Sign in to Windows with an administrator account.
Go to Start , enter encryption, and select Change device encryption settings from the list of results.
Select Manage BitLocker, select Turn on BitLocker, and then follow the instructions.
Article ID: 4028713 - Last Review: Aug 11, 2017 - Revision: 1