"Error: 0x8004005" or "Error: 0x800C0005" error messages when you scan for updates
This article provides a solution to error messages when you scan for updates.
Applies to: Windows 10 - all editions
Original KB number: 843499
When you visit the Windows Update Web site and then select Scan for updates, the result of the scan is zero percent. Additionally, you may receive one of the following error messages:
This behavior may occur if certain dynamic-link library files (.dll files) aren't registered correctly or if there's a firewall between the computer and the Internet that doesn't allow HTTPS (SSL) connections.
To resolve this behavior, use the
regsvr32 command to register several .dll files:
Select Start, select Run, type cmd in the Open box, and then select OK.
At the command prompt, type the following commands. Press ENTER after each line:
regsvr32 Softpub.dll regsvr32 Wintrust.dll regsvr32 Initpki.dll
Restart your computer.