Hello, I have using Windows 7 64Bit and trying to update: x64 Microsoft XML Core Services 4.0 Service Pack 2 Update (KB973688) x64 Microsoft XML Core Services 4.0 Service Pack 2 Security Update (KB954430) When i try to update that gives 643 error. I have to look log manager but just writes Update Error on the KBxxxxx How can i solve this problem ? Thanks... Mustibh www.mustibh.tk

Hello, Please download them and try installing them manually. If this does not help try to: Run chkdsk /r /f and sfc /scannow Download and install System Update Readiness tool for your OS Disable all security softwares Reset Windows Update Components Once done, check again. If this does not help, try performing an in-place upgrade (repair install) of your OS. This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner 2010 / 2011 Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows 7, Configuring Microsoft Certified IT Professional: Enterprise Administrator Microsoft Certified IT Professional: Server Administrator

Thanks for reply, i have a downloaded manually and my problem is solved. Thanks...Mustibh www.mustibh.tk