How to Fix Error Code 0x80070643


Click here to scan and fix Error Code 0x80070643

Error code 0x80070643 is an error code related to Microsoft Windows Installer. It is a generic error code that informs the user that an error was encountered by Windows Installer. It usually occurs when the system attempts to update using the Windows Update utility and the installer is being interrupted somehow. The first action that should be undertaken is to check user account permissions. Many times, error 0x80070643 occurs because the user account does not have administrator status meaning that the user account is not allowed to take such actions on the system. This can be adjusted by accessing “User Accounts” in the Control Panel and editing the settings of the user, or having the user with the necessary administrative permission perform the installation.

  • Step 1: Download and Run/Save the Error Repair Tool
  • Step 2: Next, click the SCAN button.
  • Step 3: Click the REPAIR button to fix your errors.

The next recommended action that is always a good step to try with errors is to check for and repair any damaged settings that may be present in the registry. This can be done by using a registry cleaner program to scan through the registry of the computer and fix any errors. The registry is a large database designed to store important files that the computer uses to operate. Because the registry is so large and used so often and by so many programs and processes, it is one of the biggest causes of problem and is often damaged and corrupted.

It should also be ensured that the latest version of Windows Installer is installed on the system. Also be sure that there is no internet security program blocking the installation or installer program. This can be a Microsoft Antivirus or Antimalware program or utility as well.

One solution that fixes a variety of Windows Update issues is to use the command prompt and enter the following commands one at a time:

Regsvr32 wuapi.dll
Regsvr32 wuaueng.dll
Regsvr32 atl.dll
Regsvr32 wucltui.dll
Regsvr32 wups.dll