Hi, When I try to Uninstall, in the middle of the Uninstall process I get this message from the Returnil Virtual System 2011 Setup Wizard: Could not delete key \System\CurrentControlSet\Services\rvsystem. Verify that you have sufficient access to that key, or contact your support personnel. When I try to Repair, in the middle of the Repair process I get this message: The installer has insufficient privileges to modify this file: C:\WINDOWS\System32\Drivers\rvsmon.sys. I am a newbie and don't know why this is happening. Please help! How can I successfully get around this obstacle and uninstall RVS 2011 ?? Thanks!