Check the date and time, if it is not correct, correct it and restart the computer.
What is the operating system you are having ? (Wndows XP/ Windows Vista / Windows 7)
What is the internet connection you are having ? (DSL / Dial-up / Cable /Wireless /Satellite)
follow the link below,
it will show the email address
In your registration screen click the login button for login as existing user
put the email address following the above link and the corresponding password and then register
it will get registered.
Sorry, not a solution to me, but thanks for your answer.
I clicked on the link you suggested and it doesn't recognize my email address : perhaps normal as I use my OFFICIAL email address to register software, and another one in any forum.
And as I said : wen re-registring (with my OFFICIAL email address), the system tells me this computer is already activated.
Computer dat+time are correct.
My OS is Win7-64 bit.
My internet connection : ADSL through a router (LAN)
Sorry, I also forgot to mention that the link in the home panel of McAfee SecurityCenter ("please active ate your suscription") doesn't work.
This is more of a subscription issue, I would recommend you to contact mcafee chat from here, as they would help you to find out your original subscription and help you in registering your subscriptions.