The drivers included with 4.19 (Jungo/WinDriver) often conflict with modern Microchip Studio drivers. If using an AVRISP mkII or Dragon, you may need to use to replace the driver with libusb-win32 or install the Microchip Driver Bundle AVR Freaks 💾 Download Links Full Installer (4.19.730) Microchip Archive AVR Toolchain (GCC) Microchip Toolchain Archive WinAVR (Alternate) SourceForge
A device running a loop of:
: Operates significantly faster than Atmel Studio 7 and is suitable for older or lower-spec computers. Toolchain Integration avr+studio+419+hot