Removing System Doctor 2014 can be done using an antivirus tool. Unfortunately, System Doctor 2014 may have means of locking you out of program and internet browser usage. The virus may also use a popup warning during browsing, which should be ignored as it is a common tactic these programs use to lie to the user of the infected PC. Depending on your Windows system, you may want to run the computer in safe mode with networking. This is done by tapping F8 as the system restarts on most versions of Windows. Running the computer in safe mode with networking from the start up screen will prevent the virus from accessing the core components of the computer.
For more information on this threat or a manual removal guide check out http://www.pctechguide.com/virus-removal/remove-system-doctor-2014-virus