Deleting an old Archive & Install?

[adk]

I upgraded my powerbook to leopard about a year ago using Archive & Install. I just read that deleting your old archive is a good way to free up space, provided your machine is running well. I haven't had any problems. Has anybody done this that can provide any advice for or against deleting the folder?

 

[JediMeister]

Keeping the Previous System folder for more than a month after an archive and install is unnecessary. If you've lasted a year without the settings and other files in there, it's perfectly safe to trash.