Every time Microsoft releases a new cumulative update for Windows 10, it appears on Windows Update servers. For end users, their computers fetch updates automatically from these servers, utilizing valueable internet bandwidth. While Windows Update has some tricks of its own related to Delivery Optimization to share updates across other PCs in a network, it is sometimes convenient to download the offline installer of a big update. If you have more than one computer and would like to save your time and bandwidth, you can download and install the update manually on all of them.
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Also, this can be useful when you need to update a device which is not connected to the Internet directly or all the time. It can be an offline computer, a computer behind a proxy server, or a virtual machine.Microsoft releases Windows 10 updates regularly to fix bugs and vulnerabilities to improve the stability and functionality of the OS. Microsoft is using several update servers in different regions. Due to this, sometimes updates do not appear for certain countries and languages for long periods of time. In such a situation too, you might want to manually download and install updates.
While Windows Update is the primary service for update redistribution, there is a special web site which hosts update packages. It is called the 'Microsoft Update Catalog'. It is useful to grab update packages manually. After some recent changes made to it by Microsoft, it can be used with any modern browser.
Note: Some update packages might even be exclusively published on Microsoft Update Catalog. Usually, such fixes affect a small select group of users, so the majority of consumers do not need to download and install them.
To manually download and install Windows 10 updates, do the following.
Manually Download and Install Windows 10 Updates
Step 1: Open the Microsoft Update Catalog website with your browser.
Step 2: Perform a search by entering the KB number of the update in the search box. For example, KB4056892.
Step 3: Click on the Download button next to the 32-bit and 64-bit Windows 10 version links. Tip: You can quickly find if you are running a 32-bit or 64-bit Windows version.
Step 4: Download the update using the link that appears on the next page.
The update package file can be either in MSU or CAB format. Most of the time, you will deal with MSU packages.
To install the downloaded Windows 10 update, please refer to our excellent tutorial:
That's it.
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-->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.
On versions of Windows beginning with Windows 7 and Windows Server 2008 R2
Windows Update Agent (WUA) updates are included in the regular periodic updates to Windows distributed through Windows Update or to Windows Server Update Services (WSUS). You do not need to take any special steps to update WUA on these Windows versions.
On versions of Windows prior to Windows 7 and Windows Server 2008 R2
WUA automatically updates itself when Automatic Updates connects to Windows Update or to WSUS.
If Automatic Updates has not yet successfully run, it is possible that a device running these Windows versions will be running an older version of WUA that does not support all the documented APIs. If you receive a WU_E_SELFUPDATE_REQUIRED result when you use the WUA API to perform a scan, download, or install, this error tells you that the installed version of WUA is too old to connect to current Windows Update services. You cannot use the normal WUA APIs to update WUA on these operating systems.
A user can manually update WUA to a current version by opening the Windows Update control panel, selecting Check for Updates, then accepting the self-update that appears. Alternately, you can update WUA programmatically.
Win 7 Update Advisor
To programmatically update WUA on versions of Windows prior to Windows 7 and Windows Server 2008 R2
Windows 7 Sp1 Update Manual Download
- Use the WinHTTP APIs to download Wuredist.cab.
- Use the Cryptography Functions to verify that the downloaded copy of Wuredist.cab has a digital signature from Microsoft. If you can't verify the digital signature, stop.
- Use the File Decompression Interface APIs to extract the XML file from Wuredist.cab.
- Use the Microsoft XML Core Services (MSXML) APIs to load the XML file and locate the WURedist/StandaloneRedist/architecture node for the computer's architecture. For example, for x86, locate the WURedist/StandaloneRedist/architecture node with the name attribute of x86.
- Call IWindowsUpdateAgentInfo::GetInfo to determine the current version of WUA. If IWindowsUpdateAgentInfo::GetInfo returns a version number that is at least as high as the clientVersion attribute in the architecture node you located, stop.
- Use the MSXML APIs to read the downloadUrl attribute from the architecture node that you located. downloadUrl gives you the download URL for the appropriate WUA installer for the computer's architecture.
- Use the WinHTTP APIs to download the appropriate installer.
- Use the CreateProcess function or a similar API to execute the downloaded installer.