Snow Leopard Update from Leopard Without CD

You can give it a try, but first see the apple website and check if your mac supports snow leopard.

Samt1516 July 27, 2011 at 01:42:23

You can't just download an update from Leopard to Snow Leopard. That is a paid upgrade and is not offered free on Apple's site. To install Snow Leopard your computer must be an Intel Mac. You cannot install Snow Leopard on a PowerPC Mac. To install Snow Leopard without an optical drive you will need an image Snow Leopard installation disk copied to either a USB flash drive or an external hard drive. You can then boot from the external media by holding down option (alt) during boot. To obtain a Snow Leopard disk image legally you will need to buy the disk and then make an image of it using a computer which does have an optical drive. Biscuits are good, but keep the crumbs off your keyboard!