Summary
In Laserfiche 6, the ADMIN account was a special user account and existed separately from other Laserfiche user accounts. In Laserfiche 7, the ADMIN user account is not inherently different.
It follows all the rules that apply to any other user account. The only difference is that the ADMIN account is automatically created and by default, it is assigned all feature rights and privileges.
You can remove the defaultly assigned feature rights and privileges from ADMIN just like any other user account. Similarly, the ADMIN account is also part of the EVERYONE group and will be affected by modifications to security on the EVERYONE group.