Hi Ronu, When you installed DBT, did you activate it then? If not, you usually only get 45 days in which to do so, after which DBT will de-activate. I assume you system is connected to the internet. If so, right click on the DBT icon on your desktop, and select "Run as administrator". If you are asked for an administrator log on, you have another problem which I'm afraid you will have to resolve at your end. All being well, the DBT splash screen will come up, and there will be an activate button to click on. It should be intuitive from there on. If all else fails for some reason, your best course of action is to contact your dealer, or Duxbury direct. George. From: duxuser-bounce@xxxxxxxxxxxxx [mailto:duxuser-bounce@xxxxxxxxxxxxx] On Behalf Of Ronu Saikia Sent: 07 September 2013 17:15 To: duxuser@xxxxxxxxxxxxx Subject: [duxuser] Deactivation problem. I have Duxbury installed in my desktop. I also installed the software from the CD to my laptop and it was working fine. I tried opening the program after a gap of 4 weeks and now I get a message that the program has been deactivated. It also tells me that I need administrative privileges to change the deactivation. What should I do? Thanks guys, Ronu