I am getting a new error message on my pc. I was trying to remove some themes here. The error that I am getting is This operation has been cancelled due to restrictions in effect on this computer. Please contact your system administrator. It is constant when I click on anything. The system was working well and I do not think a small theme can create such a big mess. I tried to scan my pc. I am having Kaspersky 7 and it detected nothing. How to find the cause of this error.