Hi, Firstly, please let us know what kind of updates, such as Office/.NET Framework failed to install or all the updates failed? Meanwhile, you can try the following steps to test the issue. 1. Reset Windows update components How do I reset Windows Update components? http://support.microsoft.com/kb/971058 2. Rename the SoftwareDistribution folder. To do this, follow these steps: 1. Open an administrative Command Prompt window. 2. Run the following commands, and press Enter after each command: Net stop wuauserv cd %systemroot% Ren SoftwareDistribution SoftwareDistribution.old Net start wuauserv Try to install updates again. 3. Try to set your computer in Clean Boot state and then try to install the updates By setting your system in clean boot state helps in identifying if any third party applications or startup items are causing the issue. How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7: http://support.microsoft.com/kb/929135 Hope this helps Vincent Wang TechNet Community Support

Unable to download and install latest updates

Hi, Firstly, please let us know what kind of updates, such as Office/.NET Framework failed to install or all the updates failed? Meanwhile, you can try the following steps to test the issue. 1. Reset Windows update components How do I reset Windows Update components? http://support.microsoft.com/kb/971058 2. Rename the SoftwareDistribution folder. To do this, follow these steps: 1. Open an administrative Command Prompt window. 2. Run the following commands, and press Enter after each command: Net stop wuauserv cd %systemroot% Ren SoftwareDistribution SoftwareDistribution.old Net start wuauserv Try to install updates again. 3. Try to set your computer in Clean Boot state and then try to install the updates By setting your system in clean boot state helps in identifying if any third party applications or startup items are causing the issue. How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7: http://support.microsoft.com/kb/929135 Hope this helps Vincent Wang TechNet Community Support