Windows Update Error Code 646

Press windows key r to open a run box.

Windows update error code 646. The solution in a nutshell is to disable your firewall. Force to start windows update and background intelligent transfer services. A kb has been created for the 646 error code that appears when installing microsoft office updates.

Click on start menu and then enter firewall. Click on start menu. It occurs when users try to install updates to their microsoft office the windows installer discovers an issue during the process.

That windows update has been trying to install. The kb includes an automated microsoft fix it 50461 that corrects the issue. Look at the following kb.

To fix the windows update error code 646 follow the steps below. Microsoft visio viewer 2007. Then click on windows firewall.

Disable 3rd party firewall from your system sometimes the windows users come across error code 646 when the 3rd part antimalware software present in their computer restricts the process. Security update for. Typically anti virus software breaks the connection between microsoft serves and local windows update component available in system locally.

Ensure that there are no red highlights implying everything is green. As it turns out on windows 7 and windows 81 the error code 646 can very well be caused by corrupted temporary data located in the registry key associated with appdata. The error 0x80070646 or 646 is an msi installer error that will only occur when the updates are installed via the windows update control panel.

Some users also encountering this issue have confirmed that the problem was resolved after they used registry editor to navigate to the location of the appdata key and verify its content on multiple different directories. Windows update error code 646 kb972363 kb973709 kb972581 kb974234 kb974810 while installing updates on oct 13 some updates were successful while others failed the ones that failed were office 2007 updates. Check if the windows firewall is working fine.

Previous workaround to resolve the immediate problem requires the installation of the update from a standalone package from the microsoft download center. If youre using mcafee personal firewall plus f secure internet security norton internet security or another firewall vendor see its respective support page for assistance in disabling it temporarily. According to users feedback the 646 code seems to be exclusive to windows 7 and windows 81.

And these two updates. Windows update error code 646 is one of them. Security update.

Located windows update service right click on it and choose properties from the context menu. Type servicesmsc and press enter to open the services console. Select the general tab change the startup type to automatic and click.