Content Was Blocked Because It Was Not Signed By a Valid Security Certificate Repair

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Many users report that when trying to open one or more different pages with Internet Explorer and Microsoft Edge, they encounter the error “Content blocked because unsigned with a valid security certificate”.

Error Message: Content was blocked because it was not signed by a valid security certificate.

If you are currently having difficulty troubleshooting this particular error message, this article contains a list of verified troubleshooting steps. Below is a set of methods that other users in a similar situation have used to solve the problem.

Check Internet options

a. Start Internet Explorer.
b. On the Tools menu, click Internet Options.
c. Click on the Advanced tab, then locate the Security section.
d. Clear the Look for server certificate revocation check box, then click OK.
e. Restart the computer.

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Modify the registry

1. click on Start,
a) Type regedit in the Start search box, then press ENTER (Windows Vista & Windows 7).
b) Type regedit, then press ENTER (Windows XP).

2. then click on the following registry subkey :

HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Main\FeatureControl

3. On the Edit menu, point to New, then click Key.

4. Type FEATURE_ERROR_PAGE_ERROR_ERROR_BYPASS_ZONE_CHECK_FOR_HTTPS_KB950067 to name the new registry subkey, then press ENTER.

5. On the Edit menu, point to New, then click on MOT Value.

6. Enter iexplore.exe to name the new registry entry, then press ENTER.

7. On the Edit menu, click on Edit.

8. Type 1, then click OK.

Exit the Registry editor and restart Internet Explorer to see if the problem with the certificate error is solved.

Add the website to your trusted websites

In most cases, the error “Content blocked because it has not been signed with a valid security certificate” occurs if the website certificate contains an error that identifies the web server.

Internet Explorer prevents you from landing on the website with the wrong certificate to prevent scenarios in which your connection is intercepted or the web server you are trying to reach from giving a false identity.

However, these things do not apply if you trust the identity of the website and know that your connection will not be compromised.

If you are sure that this is not the case and you understand the security risks, you can bypass the error message by adding the website URL to your list of trusted websites.

https://forums.asp.net/t/2098064.aspx?SSL+Certificate+config+issue+Content+was+blocked+because+it+was+not+signed+by+a+valid+security+certificate

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