I format my pc and unity don´t take the serial

Hi, I have a virus problem in mi pc and I format all the pc… when I reinstall Unity, in the internet activation,Unity page ahowme this… “The serial number you entered has been activated too many times. If you need further help contact support@unity3d.com”.
How I cant reactive my unity…?
thank
fox
:sweat_smile:

By emailing support@unity3d.com?

well, 1rst of all, mail to support@unity3d.com

then just wait :slight_smile: it would take 1-2 days max :wink: