If You Have Windows 7 or 8, Use Administrator Mode

To run the MPLAB Device Driver Switcher, you must be in Administrator mode.

To run the Switcher utility as administrator, right click on the executable and select ‘Run as Administrator.’ Executable locations are specified below:

• 32-bit OS: C:\Program Files\Microchip\MPLABX\vx.xx\Switcher\32Bit\MPDDSwitch.exe
• 64-bit OS: C:\Program Files (x86)\Microchip\MPLABX\vx.xx\Switcher\64Bit\MPDDSwitch64.exe

It is recommended that you use the Switcher GUI utility first to switch the drivers. If this is problematic, you may switch the drivers using command-line applications.

To run the command-line application – mchpdds32.exe or mchpdds64.exe – as administrator, first open the command prompt as administrator: Start>All Programs>Accessories>Command Prompt, right click and select ‘Run as Administrator’. This will open up the Administrator: Command Prompt. After this, the instructions provided in the ReadMe32.txt or ReadMe64.txt file may be followed to complete the driver switching.