Unfortunately it isn't possible to reset a trial once it has expired. It is possible in this case that a copy of the iClone 7 trial was previously installed on this computer already. However please be aware that we do offer a 14 day money back guarantee on our products. This way if you do decide to purchase iClone 7, and then find it doesn't meet your needs, you can still request a full refund within the 14 days.