The problem was faced by one of our readers who faced the following error message whenever he clicked on a drive to open it and see the contents.

“This operation has been cancelled due to restrictions in effect on this computer. Please contact your system administrator”.

Cause of the problem:

The problem is confirmed to be caused due to change in the default web browser or the Internet Explorer.

Steps to fix the problem:

You can try following solutions and see which one fix it for you.

Solution 1:

•    Go to Control Panel -> Add Remove Programs, click on Set Program Access and Defaults.


•    Open up the configuration whichever is selected and change the default web browser to something else.

Solution 2:

•    If you use older versions of IE then upgrade it to the latest one.

Solution 3:

The problem can be caused due to the corrupt or damaged key HKEY_Local_Machine\Software\Classes\htmlfile\shell\open\command.

So just download this file, unzip it and double click to extract the registry.

Solution 4:

•    Open registry editor and search (Ctrl + F) for the value nocontrolpanel.
•    Change its value from 1 to 0.

Do mention the solution that worked for you.