I'd tried a number of ways to resolve an error code "0X8000FFFF" during the installation of Windows 7 security patches, but none had turned out any good result. Hope some experts out there can shed some light to fix this issue. Below were some of the ways that I had tried for these past couple of weeks.
A. Renaming the SoftwareDistribution folder and Catroot2 folder, then reboot the PC. Ran the windows update again will rebuilt the new SoftwareDistribution and Catroot2 folders, but it was still failed with the same error.
B. Turned "Off" both Windows firewall and the advanced firewall in Windows 7 for all of the network profiles.
C. Download the patches and manually ran it on local Windows 7 PC and it was still had the same error.
D. Scan for Viruses and Trojan horses, but found none.
I forgot to mention that the current profile was an "Administrator", and everything was still working great other than the Windows 7 Security updates.