How to Fix Cummulative Windows 10 Update KB3189866 Stuck at 45%?

by Alice Woods - -
12

Question

Issue: How to Fix Cummulative Windows 10 Update KB3189866 Stuck at 45%?

Do you know what the matter with KB3189866 cumulative Windows 10 update is? When I attempt to run the upgrade, it gets stuck at 45% and doesn‘t go any further.

Solved Answer

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Less than a week ago, Windows reported about the release of three Cumulative Windows 10 updates – KB3189866, KB3185614, and KB3185611. These updates have been developed to improve the functionality of Windows 10 Version 1607 and decrease its vulnerabilities. The two of them are working properly. However, Cumulative Update KB3189866 for Windows 10 appeared to be problematic since lots of users reported it for getting stuck midway (around 45%). Unfortunately, but usually it does not refreshes and have to be forced-closed. Luckily, specialists have already indicated what steps can be taken in order to fix KB3189866 update error.

How to fix Stuck Cumulative Update KB3189866 for Windows 10?

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Yes, we admit that all Windows 10-related bugs are more than irritating. Usually, they cause the system to stuck, slow down, restart, etc., which is why you may even lose a some important work your were currently working on. Unfortunately, but there is no operating system developed that has never encountered an error. The most important thing is that specialists develop threads and inform people how to fix KB3189866 errors and similar issues ASAP. Thus, in this post, we will explain what should be done to fix stuck Cumulative Update KB3189866.

Fix 1. Re-run the update

  1. Right-click on the Win key, select Command Prompt (Admin), and click OK.
  2. Type  Dism /Online /Cleanup-Image /StartComponentCleanup in the run dialogue box, and hit Enter afterwards.
  3. This command will automatically fix startup components.
  4. Finally, re-run KB3189866 update.

Fix 2. Delete files from Software Distribution

  1. Right-click on the Win key and select Command Prompt (Admin).
  2. Type net stop bits and net stop wuauserv commands in the run dialogue box and hit Enter after each of them.
  3. After that, close the Command Prompt window.
  4. Hold Win key and while holding it press R key.
  5. Type C:\Windows\SoftwareDistribution and click OK.
  6. Make sure that you delete all files stored in Software Distribution folder.
  7. Finally, download KB3189866 update manually and try to run it one more time.

If these two fixes did not help, then the only thing that you can do to run KB3189866 update successfully is to wait. When it gets stuck at a certain percentage, leave your PC for several hours and it might be that you find the update process completed.

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About the author

Alice Woods
Alice Woods - Shares the knowledge about computer protection

Alice Woods is a security expert who specializes in cyber threat investigation and analysis. Her mission on Ugetfix - to share the knowledge and help users to protect their computers from malicious programs.

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