The fuse box for the boot on a Vauxhall Astra is located in the boot of the vehicle, on the左侧, behind a plastic cover.
Fuse Identification
The fuse for the boot is labeled "BOOT" and is usually a 15 amp fuse.
Fuse Replacement
To replace the fuse, simply pull the old fuse out of its socket and insert the new fuse. Make sure that the new fuse is the same amperage as the old fuse.