WHY MY MAC at the BEGINNING of 2009 PRO 2.66 GHz Quad - Core Intel Xeon will NOT IMPROVE in SIERRA

WHY MY MAC at the BEGINNING of 2009 PRO 2.66 GHz Quad - Core Intel Xeon will NOT IMPROVE in SIERRA

Your signature says you're running snow leopard 10.6.4. If this is the case you must update to 10.6.8 in order to get the Mac App Store:

Mac OS X 10.6.8 Combo Update v1.1

You will need to upgrade to El Capitan until you can upgrade to Sierra:

https://iTunes.Apple.com/app/OS-x-El-Capitan/id1147835434?MT=12

Tags: Mac

Similar Questions

Maybe you are looking for