how can i installed catalina

neachang wrote:

i want to installed msO catalina to my macbook pro

If you have issue— verify you are using the Safari browser to download/initiate the macOS links:

Catalina try : https://apps.apple.com/us/app/macos-catalina/id1466841314?ls=1&mt=12

macOS Catalina - Technical Specifications - Apple Support

https://support.apple.com/kb/SP803?locale=en_US

System requirements macOS 10.15 Catalina

macOS Catalina will run on all Macintosh computers that supported Mojave:

MacBook: Early 2015 or newer

MacBook Air: Mid 2012 or newer

MacBook Pro: Mid 2012 or newer

Mac Mini: Late 2012 or newer

iMac: Late 2012 or newer

iMac Pro

Mac Pro: Late 2013 or newer; Mid 2010 or Mid 2012 if upgraded with a recommended Metal-capable GPU