How to Change Username for your Facebook Page on PC?
Step 1: Go to the Facebook Page.
Step 2: Click on 'See More' link in left menu.
Step 3: Click on 'About' link.
Step 4: Click on 'Edit' link next to 'Username'.
Step 5: Type the username that you want in the box under 'Username'. If that's available, it will show green checkmark.
Step 4: Click on 'Create Username' button.
If everything goes well, you will see a message 'You are all set'. Now, you can access your page with new username.
It's done.
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