This message has just started showing out of the blue. It comes up as soon as windows loads. It is not and never has been a corporate machine, hence I am the administrator.It has blocked my external hard drive back up, and now won't even let me read a memory stick. In that case, I get "Administrator has prohibited access to USB/1394 mass storage devices". I have searched through everything and all appears ok. I have run several virus checks and spyware checks, but all come up clean.Hopefully someone can help me. Thanks. 1 person needs an answerI do too

Are you using Acer computer?If yes, then uninstall : Acer LanScope or update it and see if that resolve the problem.

How do I do that? In add and remove programs? Cheers.

Whoops, should have said "Yes", using Acer.