blocked from some programs

[Guest]

I am administrator of this computer but when going into windows media center
a warning comes up that says I'm signed on as a guest and don't have access
to this application. How do I fix this problem...I have no guest accounts on
this computer.

 

[Guest]

try changing the ownership of the files this can be done by selecting the
security tab in the properties menu and select advanced and then the owner
tab change to yourself. then giveyour self full control from the security
tab. if this does not work repost on this thread and i will give other
solutions.