While working in Vista I experienced a recent system failure and I do not know if it was caused by a virus. I had AVG Free Edition installed and it was up to date. I decided to perform a clean reinstall using the Vista DVD Installer, but at a certain point a message appears onscreen informing that Vista can not be installed, and that some required files may be missing or corrupt. It also points that there might be a hard disk failure. However, I was able to perform a clean reinstall for openSuse to keep working with my PC. Before the Vista system failure, the double booting process had been working well for more than a year. I would appreciate your kind help in knowing the available options that might exist in this case to be able to reinstall successfully Vista.