Microsoft Windows Update Agent (WUA) is an agent program that works in conjunction with Windows Server Update Services to support automated patch delivery and installation.
The WUA scans client computers to determine what security updates have not been installed and then searches for and downloads the updates from Microsoft's update websites or from the Windows Server Update Services (WSUS) server.
According to Microsoft, there are five parts to the WUA:
Service Availability - detects, downloads and installs Windows updates and updates for other programs.
Server Connectivity - an application program interface (API) that allows client computers to connect to the WSUS server or Microsoft's update websites.
May 30, 2019 Usually, users may come across this type of problems when the Windows Update agent related services stop working, there’s an issue with the update cache, or some components are corrupted. In these situations, you can reset the Windows Update on Windows 10 to fix most problems. Usually, users may come across this type of problems when the Windows Update agent related services stop working, there’s an issue with the update cache, or some components are corrupted. In these situations, you can reset the Windows Update on Windows 10 to fix most problems. Windows Update Agent (WUA) updates itself through various means, depending on the version of Windows running on the device. Old versions of WUA may not be able to connect to current update services, may not be compatible with all updates, and may not support all documented APIs. Here is how to insure that WUA is fully updated and compatible. Jun 14, 2019 To download and install major Windows updates (the upgrade from Windows 7 or Windows 8.1 to Windows 10, for example), you need to not only have all other Windows updates available for your computer installed but also need to have the latest version of the Windows Update Agent.
Update Detection - checks for and installs updates daily.
Update Downloads - downloads available updates from WSUS, Microsoft Update or Windows Update.
Reset Windows Update Agent Tool Windows 10
To continue, you must first add this website to your trusted sites in Internet Explorer. The site cannot determine which updates apply to your computer or display those updates unless you change your security settings to allow ActiveX controls and active scripting. On one machine running Windows 10 Threshold 2 (TH2), the windows update agent does not appear to be working. It is stuck on downloading a definition update for Windows Defender and it has been like that for the last 2 days.
Disable Windows Update Agent Windows 10
Update Installation - installs available updates from WSUS, Microsoft Update or Windows Update.