Comment 3 for bug 314473

> 1) Button deleting any guide

a) there is an extension 'Remove Guides' you can download from:
<http://screencasters.heathenx.org/blog/2009/06/09/inkscape-extension-remove-guides/>

b) You can also use the included extension 'Render > Guides Creator' to delete all existing guides (if there are too many to delete them individually with the delete key while hovering over them (Inkscape 0.47pre):

- Preset: Custom…
- Vertical guide each: None
- horizontal guide each: None
- start from edges: [no]
- delete existing guides: [yes]

-> Apply