Saturday 28 May 2022

[Windows 7] Your connection is not private NET::ERR_CERT_AUTHORITY_INVALID for all HTTPS sites

Recently, Windows 7 users reported an error that they could not access the websites "Your connection is not private", "NET::ERR_CERT_AUTHORITY_INVALID". This error is encountered in all browsers on the machine. And it is encountered only when accessing websites with https. In other cases, the website displays a blank page because the static content files cannot be loaded. This error is encountered because the customer's Windows 7 operating system is not fully updated with security patches.

SSL certificate error on all browsers, for all HTTPS sites

Solved

To fix this, If you are using windows 7, please install security update KB3004394 from Microsoft.
You can download the KB3004394 package from the official Microsoft website using the following link:


To install the update successfully, Windows must have the Windows Update feature enabled.

After installing the update above, please clear your browser's browsing history data and restart your computer. HTTPS sites can now be accessed normally.
In addition, you should also install all the latest updates for your windows 7 operating system through the Windows Update feature. This will help keep your computer safe and less prone to problems.

Done !

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