ibook g4 update OS

[Radass23]

Hi. I have very old laptop ibook l g4 with leopard 10.5 system
Im trying update to 10.5.8, but when I click on update, an error appears: you do not have appropriate access privileges.
Please, how to update? Thank u very much

 

[Strategia]

Are you using Apple's Software Update utility? You can try updating with these files instead: https://macintoshgarden.org/apps/leopard-update-pack
First apply the 10.5.8 update (first download link), then apply all the rest.