can i upgrade a 2009 macbook pro to yosemite if it is running OS 10.6.8 currently? and then if it renders too many software(s) unsuable, can you REINSTALL the older OS if necessary?
can i upgrade a 2009 macbook pro to yosemite if it is running OS 10.6.8 currently?
and then if it renders too many software(s) unusable, can you REINSTALL the older OS if necessary?
MacBook Pro, Mac OS X (10.6.8)