About this Mac says OSX10.9.5; appstore says OSX10.13.4 allready installed... How to solve?
How can I solve this problem; I cannot do the upgrading for my Mac. I get an error massage in Google Chrome that OSX is still 10.9.5.... In App store it says allready installed OSX10.13.4.
TXS for feedback!! grz. Paul
iMac (21.5-inch, Late 2013), OS X Mavericks (10.9.5)