had another hd installed hitatachi modle HDS721050DLE630 so my hardware has been modified, will I have problems if I try to upgrade Mavericks?
Can someone please give me a clue if this Mavericks is worthwhile and will I have problems since I have modified my computer due to original hd crashing.
I do not want to try and download this if it is going to jam up my system.
Please help i am perplexed and not sure what to do.
Thanks
iMac, Mac OS X (10.7.2)