How to Fix “content was blocked because it was not signed by a valid security certificate” on Internet Explorer

Symptom :Certificate error Web page is displayed when you try to visit an SSL Web site by using Internet Explorer 7, Internet Explorer 8 on Windows XP, Windows Vista and Windows 7 operating system.

content was blocked because it was not signed by a valid security certificate

Solution 1:
1. To clear the certificate error go to Tools –> Internet Options from the menu of Internet Explorer(IE).
2. Click on the Advanced tab and scroll down to the security section. Clear the boxes for: “Check for publisher’s certificate revocation” and “Check for server certificate revocation”.
3. Click Apply and Ok.
4. Restart Internet Explorer to see if the certificate error problem is fixed. If not, try the following “Solution 2“.

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Solution 2:
1. Click Start,
a) Type regedit in the Start Search box, and then press ENTER (Windows Vista & Windows 7)
b) Type regedit, and then press ENTER(Windows XP)

2.Locate and then click the following registry subkey:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl

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

4. Type FEATURE_ERROR_PAGE_BYPASS_ZONE_CHECK_FOR_HTTPS_KB950067 to name the new registry subkey, and then press ENTER.

5. On the Edit menu, point to New, and then click DWORD Value.

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

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7. On the Edit menu, click Modify.

8. Type 1, and then click OK.

9. Exit Registry Editor and restart Internet Explorer to see if the certificate error problem is fixed. If not, try the following “Solution 3“.

Solution 3:

1. Click Start , type regedit in the Start Search box, and then press ENTER.

2. Locate and then click the following registry subkey:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl

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

4. Type the following key name, and then press ENTER:
FEATURE_ERROR_PAGE_BYPASS_ZONE_CHECK_FOR_HTTPS_KB954312

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5. On the Edit menu, point to New , and then click DWORD Value.

6. Type iexplore.exe, and then press ENTER.

7. On the Edit menu, click Modify.

8. Type 1, and then click OK.

9. Exit Registry Editor and restart Internet Explorer to see if the certificate error problem is fixed. If not, try the following “Solution 4“.

Solution 4:
Upgrade the Internet Explorer Version to latest.

8 comments
  1. OriginsFan
    OriginsFan
    July 10, 2015 at 1:38 am

    I’ve attempted all four solutions and it remains unresolved. Can my virus protection application be involved? I’ve attempted accessing a site that requires a log in, and on each browser (updated) I receive the same message.

    Reply
  2. OriginsFan
    OriginsFan
    July 10, 2015 at 1:52 am

    I’ve tried all of the suggested solutions and none have been successful. I’ve tried a couple of the browsers, all are the most recent versions, and I cannot log in to this particular site. Could this be my Anti-Virus program that is blocking it?

    Reply
    • thulani
      thulani
      September 1, 2018 at 6:52 pm

      fixed google chrome

      Reply
  3. asan
    asan
    December 12, 2015 at 6:49 pm

    Use Google Chrome – NO PROBLEM!

    Reply
  4. Dianne
    Dianne
    December 23, 2015 at 4:28 am

    It’s not my first time to pay a quick visit this web site, i am browsing this website dailly and take pleasant data from here all the time.

    Reply
  5. Rick
    Rick
    April 27, 2018 at 3:55 am

    use google chrome. Microsoft Don’t care about the little people, just big corporate company. Their tech run you around and I believe they don’t care. This crap from a big company.

    Reply
  6. Tri phung
    Tri phung
    June 12, 2018 at 8:34 am

    after I pay for fix
    Content was blocked because it was not signed by a valid security certificate. now still the same can’t get in

    Reply
  7. Avast Blocking League of Legends
    Avast Blocking League of Legends
    November 15, 2018 at 5:54 am

    It is really a pity! I hope that future versions of Internet Explorer will include those compatibility options.

    Reply
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