You may experience Windows Vista error code 80073712 (or 0x80073712)when you try to use Windows Update. This error can occur when the windows update files are corrupt. \n \nTo fix this, run the following command from the run window (Press [B]WINDOWS KEY + R[/B]):\n \n[code]chkdsk c: /f[/code]\n \nThis will scan and fix and errors, but will require your PC to be rebooted in the process.\n \nOnce you are back in Windows, copy the Vista setup CD to a directory on your hard drive. From here, run the installation and choose "update". This will install Vista over the top of the current installation and fix any corrupt files.\n \nIt is recommended that you make a backup of any important data, as if this last step is performed incorrectly or goes wrong then you may lose your files.