: If you believe system DLLs are corrupted, run the SFC tool. Open the Command Prompt as Administrator and type sfc /scannow to repair missing or broken system files.
: The actual files needed for RPCS3 are freely available from the official developers (Microsoft and Vulkan/GPU manufacturers). How to Properly Fix Missing DLLs If RPCS3 says a file like Vulkan-1.dll MSVCP140.dll rpcs3 all dll files top
Many "DLL fix" sites bundle files with spyware or miners. : If you believe system DLLs are corrupted, run the SFC tool