This is from a castlecops forum post (castlecops is now defunct): To get to the system account do this : Log on as any account that has admin rights . Go to start , run and type cmd and press enter . At the prompt type "at XX:XX /interactive cmd.exe" without the quotes and XX:XX representing the time in 24 hour notation and 2 minutes into the future . Type exit and press enter . At the time specified a new cmd box will appear . Anything executed from that box will have system privileges . All files for all accounts should be accessible now . ****DO NO SURF , OPEN EMAIL , INSTALL ANY APPLICATIONS OR UPDATES FROM THE SYSTEM DESKTOP . DOING SO CAN CREATE FILES THAT CAN ONLY BE ACCESSED FROM THE SYSTEM ACCOUNT . MALWARE INSTALLED HERE WILL BECOME IMMUNE TO ANYTHING BUT SYSTEM ACCOUNT SCANNING .**** These are the instructions for logging into the system desktop . This is different than the above directions because you will have all normal windows GUI functions and direct access to every file on the system . Log on as any account that has admin rights . Press ctrl + alt + delete . Click the processes tab . Right click explorer and select end process . (your desktop will disappear , don't worry) Click File , New Task (Run...) , type cmd and press enter . Close the task manager . At the prompt type "at XX:XX /interactive cmd.exe" without the quotes and XX:XX representing the time in 24 hour notation and 2 minutes into the future . Type exit and press enter . When the new prompt appears type explorer and press enter . Type exit and press enter . You will now be on the system desktop . From here you can run your apps although you will have to navigate to the programs files folder to run them because the system desktop will not carry over your start menu or desktop shortcuts . Any malware scanners run from here will have full access to every file under every account . The system account desktop can also be used to secure critical data . The my documents folder of the system account will be both invisible and locked to every other account (admin included) on your system .