How can I remove Dialog box?

Hello friends ,I am wwwherbalgrannycom and I want to resolve my problem.When I start my computer, One dialog box appears and in which there is back timer and start from 49:00 and my computer will automatically closed when it become 00:00.

And I treid to remove or close this dialog box but not succeed .

Anyone who has some solution concerned this problem ?

TIA

Have you tried stopping the process with Task Manager? If not, try alt-crtl-del and look for what might be causing the problem. I’ve never encountered anything similar so I can’t say what the process or program might be. Also check Add/Remove programs to see if anything sticks out. You can also try Autoruns, http://technet.microsoft.com/en-us/sysinternals/bb963902.aspx, to prevent the process/program from loading at startup.