Cumulative Update for Windows 10 Version 1607 for x64-based Systems (KB3189866) – Error 0x80070020 I’m only finding old stuff. (1) If you’re running a 3rd-party anti-virus or other anti-malware such as SpyBot, disable it & try again. (2) Try it in Safe Mode with Networking.
What is cumulative update in Windows 10?
Windows 10 updates are final. Therefore, this package includes all previously released fixes. (See KB 3081424.) If the public has installed previous updates, only the new fixes they contain will be downloaded and therefore installed on your computer.
How to update to specific Windows 10 version?
Enter the version of the Windows product for which you want to receive updates (for example, “Windows 10”).
Enter the version (for example, “21H1”) that your whole family wants to specify in the “Update target version” field.
Click/tap if everything is ok.
Go to the step below.
How to get the Windows 10 Anniversary Update?
As described in step 5 above, check the “More Information” box under the “Search for information about the latest updates” section.
The “More Information” link takes you to the Microsoft support page where you can create the Windows Anniversary Update.
Click the Get Anniversary Update Now link and the Windows10Upgradexxxx then.exe file will be considered for download.
How to manually install the Windows 10 Creators Update?
Here’s how you can start using the Media Creation Tool to get the update: Download the Creators Media Creation Tool here.
Make a backup of the system data of the partition and help your license key.
Open the app to select Update on this PC now.
After installation is complete, select Save to personal files and applications.
The PC will restart for several days and nights, you’re done.
Why is Windows 10 Version 1607 a cumulative update?
This update includes improvements and bug fixes to improve the functionality of Windows 10 version 1607. Windows 10 updates are final. Therefore, this package contains previously released fixes. If you have already installed previous updates, only the new patches included in my package will be downloaded and placed on your computer.
Are there any problems with Windows 10 1607 cumulative update?
New reporting of broken WSUS connections, deleted recovery points, and confirmed errors from Microsoft in the August 1607/Server 2016 cumulative update.
What’s the new version of Windows 10 Version 1607?
Windows 10 1607-style updates give administrators more control over updates, which vary from weeks to days depending on redesign level and backlog.

Vijay is a tech writer with years of experience in the Windows world. He’s seen it all – from simple problems to catastrophic system failures. He loves nothing more than helping people fix their PCs, and he’s always happy to share his wisdom with anyone who needs it.
When Vijay isn’t fixing Windows problems, he likes to spend time with his wife and two young children. He also enjoys reading, playing cricket, and watching Bollywood movies.