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Here the topic is about windows update error and the error code is 0x8007066A. Here you will get fully discussion and also get the process to solve windows update error code 0x8007066A. This is a very common error that occurs during updating windows. If you want to add recent features in your system then it is to be necessary to update your system. In the IT field daily new things are available in the market. It is not to be possible to launch new things with a new operating system soon. So all the operating system companies launch his update by which all the new technology added in the computer. But in the application or software there are so many programs lines written or due to so many reasons many error code will generate. So here the discussion is fix error code 0x8007066A in windows.

How the error code 0x8007066A occurs in updating windows

The error that you are facing occurs due to a minor problem. The problem is if Microsoft windows update decides that there is a problem that holds installation prerequisites. If you are getting error code 0x8007066A during windows update then read the entire paragraph that is below and solve your issue.

  • The most common reason behind this error is installing incompatible or outdated driver, missing system files, corrupted registry file or damaged pc by viruses. Advanced System Repair Tool is the only solution for all the system errors. By installing this tool you will be able to remove above windows error.
    3 Steps to Fix this Error

    Step 1. Download Advance System Repair Tool [File Size: 15.7 MB]
    Step 2. SCAN your Windows PC
    Step 3. Click Fix button to Repair Error

Fix error code 0x8007066A in windows

To fix the issue you have to edit some value in registry editor. Here very simple process is given to edit registry. The process has been followed by all users. Please read these steps carefully with patience, you will get the solution of this error.

  • On or computer as administrator and then open notepad. To open it you can use all programs or you can also use run window.
  • Copy the following command and paste it into the notepad.
  • Windows Registry Editor Version 5.00


  • After paste it into the notepad click on save as from the file menu.
  • Choose the desktop in the location box and give the file name LoggingOn.reg and then choose all files in save as type box then click on save button.
  • Open the saved file from the desktop and click yes if any confirmation message appears.
  • Try to install windows update again. After the window update finish you have to disable Microsoft installer logging. To disable it follow these steps.

  • Again open notepad and then copy the following commands and paste into the notepad.
  • Windows Registry Editor Version 5.00


  • Follow the same process only change the file name as LoggingOff.reg and then click save.
  • Again open the saved file and click again yes when confirmation message appears.
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Receive error code 0x8007066A while updating windows

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