First, it is important to manage expectations. Proteus does not have a native, official "Install Library" feature for STM32 chips like it does for Arduino or PIC.
DIGITAL OSCILLOSCOPE or LOGIC PROBE..IDX, .LIB)Proteus-STM32-Library)💡 Pro Tip: If your simulation runs slowly, check the "System" menu in Proteus and adjust the "Set Simulation Options" to prioritize "Realtime Simulation" or increase the time-step. proteus library for stm32 install
STM32F103.LIB (component model)STM32F103.IDX (index file)