Error 646 Microsoft
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Company About UsPartnersNewsAwardsPress ReleaseBlogCareersContact Us You are here:Home>Labs>Research>Fix Code 646 Registry Fix Can Solve Windows Update Error Code 646Overview - What is Windows Update Error Code 646?Windows Update Error code 646 is an error that is generated by Windows Installer, and is usually seen when trying to install updates to Microsoft Office.If Windows Installer discovers a problem while updating Microsoft Office, you may see this error. It's an indication that an error has been found, and that the requested updates or automatic updates have failed. You should therefore attempt to solve the problem before any future updates can be attempted. Failure to remedy the problem will http://answers.microsoft.com/en-us/windows/forum/windows_vista-update/windows-update-error-code-646-kb972363-kb973709/6e716883-7af4-4a9f-8665-2f4dd57eee8d mean new updates are unlikely to be downloaded and installed.Common Error Messages Seen for Windows Update Error Code 646Windows Update Error code 646 can manifest itself in a few different ways. If the error is generated you will see one of the following messages:Error Code: 646Error Code: 0x80070646Error 1606 Could not access network location %APPDATA%While the last example here does not specifically mention error code 646, it is http://www.reimageplus.com/fix-code-646-error/ a related error message regarding the update of Microsoft Office, as you will see from the solutions below.Causes for Receiving Windows Update Error Code 646You will receive this general error code when Windows Installer discovers an error. Error Code 646 specifically relates to downloading Windows Update files and installing them through Windows Installer. This usually occurs when updating Microsoft Office, and when using a firewall, but it can be seen on other occasions too, particularly when using Windows Update.You will generally see a Windows Update Error code 646 if there is an incorrect value in the registry.Solutions - How to Fix Windows Update Error Code 646If you're using a firewall, either Windows built in firewall or a third party firewall, sometimes this blocks Windows Update from downloading and installing updates onto your computer. To solve the issue, you can turn off your firewall while the updates are being downloaded and installed. Once completed, you can turn your firewall on again. This is not an ideal solution due to the dangers of turning off a firewall and thus potentially exposing the system risk.Alternatively, it's possible there is an invalid entry located in your registry, which is causing this error to appear when Window
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0x80070646 When Installing Microsoft Office Updates Windows Update does more than just update files for the operating system. It also updates applications such as those included in the Microsoft Office suites. Sometimes, the update procedure fails and produces error 0x80070646. Learn how to troubleshoot and fix Windows update error 0x80070646, which is sometimes referred to simply as error 646. Windows Update Errors and Microsoft Office Although the Windows Update process seems simple enough, it is actually quite complicated. The application must determine not only which applications you have installed on your PC and which need updating, it must also determine which versions you currently have and which are the correct update paths to bring your applications up to the latest releases. The chances for errors are quite high. One common error encountered by users of Microsoft Office is error 0x80070646, which is sometimes simply referred to as error 646. This error occurs when Windows Update does not know the location of some of the files on your PC. The Registry holds all such information so fixing this error requires locating a Registry key and checking its value. If the value is correct, it is not the source of the error. If the value is incorrect, you need to change it to the correct value. How to Fix Windows Update Error 0x80070646 Log in to Windows 7 using an account that has administrative privileges and click on Start>Run to open the Run dialogue box. If you don’t have the Run button on your Start menu, you can alternatively hold down the Windows Key on your keyboard and press the R key. When the Run dialogue box opens, type in regedit and click the OK button. You should now be looking at the Registry Editor application. Locate the following registry folder: HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders Click on User Shell Folders and locate a key labeled AppData. Double click on the AppData key and note the string of text for Value Data. The Value Data for the AppData key should read: %USERPROFILE%\AppData\Roaming If the Value Data text string for the AppData key is anything except that, type in the correct value and click the OK button. Close the Registry Editor and you are done. If the problem persists or if the value is correct, follow the same steps above but this time locate the folder at: HKEY_CURRENT_USER\Software\Microsoft\Windows\C