You can lock or unlock layer guides in the session, or by default. Master guides are always locked, except when you are editing a master page: then, their locking status depends from what's explained below.
Lock or unlock guides
1. | Open a page, or a master. |
2. | On the Layout menu, select Lock guides. |
Lock or unlock all guides by default
On the Edit menu, click Preferences, click Grid, and then select or clear Locked.