The 0x80070543 error tells you that there is a problem with the updates you’re trying to download for your operating system. It has been here since Windows 7, and it still appears with Windows 10.
If you take into consideration that Windows 10 is offered as a service, and not as a final release, not being able to install updates for it becomes a much bigger problem, and even without this it shouldn’t be neglected. Users will see this error message pop up when they try to install their updates via Windows Update, and the update will fail.
Given that this is not such an uncommon error, it is strange that Microsoft haven’t managed to fix it. Another thing is that the error code doesn’t really explain much, and there is no clear indication as to why the updates fail. Fortunately, there is a solution that has been reported to work for a very big number of users, so read on to see how you can solve this issue if you’re affected.
How to Fix Windows Update Error 0x80070543
Before you start solving the problem, please be warned that you’re working with an important component of Windows. What this means is that if you manage to modify something that you’re not supposed to, the results may be much worse than you think, and that may lead to you needing to reinstall the operating system. Be careful and follow the instructions.
- Press the Windows and R keys on your keyboard, and in the Run window, type dcomcnfg.exe in the Open dialog box, and press Enter on your keyboard, or click OK. If you receive an UAC prompt, click OK.
- Using the left side navigation pane, expand Component Services, then expand Computers, and you will find My Computer. Right-click My Computer, and select Properties from the drop down menu.
- Navigate to the Default Properties tab. If the Default Authentication Level is set to None, open the list and set it to Connect. If it isn’t set to None, don’t change it, as it may have been set by an administrator. In the Default Impersonation Level list, select Identify. Click OK, and then Yes to confirm your settings. Close the Component Services window.
The aforementioned steps have been confirmed to help with this problem. After you’ve done them, you can continue installing Windows Updates without fear of the error appearing again.