If you see “Hide Rulers” instead, rulers may already be showing. Check the top and left sides of your document.
If guides are unlocked, you can move them by clicking and dragging them. If they are locked, you cannot move them.
Alternatively, you can click Clear Guides to completely remove all guides from your document. Click Hide Guides if you want to hide the guides from your document instead of removing them. Click Show Guides to display the guides again.