So, the possibility is that many invalid registry files and program files are left in your system and hard disk. If you leave them in your system, your system registry will be stuffed with useless entries and system becomes unstable and slow. In SiS 180 situation, you need to manually delete those entries and files left in the registry and the system. Delete associated files and folders First you need to show all hidden files in your SiS 180. Therefore,[…]