Hi, Following patches has been failed with error code "Unknown Error. Code : -939523085" in Few computers, Cumulative Security Update for Internet Explorer 9 in Windows 7 x64 Edition (KB2722913)Security Update for Windows 7 for x64-based Systems (KB2705219)Security Update for Windows 7 for x64-based Systems (KB2712808)Security Update for Windows 7 for x64-based Systems (KB2731847)Update for Windows 7 for x64-based Systems (KB2647753) even the manual installation is getting failed with the error "Installer encountered an error: 0x80003f3". Kindly advise on this.!! Veera

Hi Veera, Thanks for posting in Microsoft TechNet forums. From your description, I understand that several Windows Updates for Windows 7 64 bit Edition fail to be installed. Please understand that this forum is for Windows Server and this issue is more related to Windows 7 system. I suggest we post this issue at our Windows 7 IT Pro forum. There you can get more effective suggestion by other experts who familiar with the Windows 7 product. Your understanding is appreciated. Windows 7 Security http://social.technet.microsoft.com/Forums/en/w7itprosecurity/threads Regards Kevin

Thank you Kevin.. Regards Veera