i bought mcafee fee live safe on this month of 23rd august through ebay website. so after login through mcafee website i got the product .Then i installed in my system through download option. While installation it went through all the process upto step 3 and after step 3 i recieved an error showing that your installation is incomplete. please try after sometime.So like this i have installed several times but it is of no use.
1st did you ever have another antivirus installed it should be removed via its own removal tool.
Then run MCPR from here to clean up teh part install
Then retry the install the sever could have been down when you tried.
If all else fails call support they will assist you.