Hi John,

On September 17, 2012, Microsoft has released a security bulletin educating customers about vulnerability in Internet Explorer (versions 6 to 9); Internet Explorer 10 is not affected.  An automatic Windows update has been published that corrects this vulnerability (KB2744842) and running this update seem to have fixed the issue in most cases.

Try reading Microsoft Security Advisory link: http://dell.to/SxzrjZ

1. Apply the Microsoft Fix it solution, "Prevent Memory Corruption via ExecCommand in Internet Explorer", that prevents exploitation of this issue : support.microsoft.com/.../2757760

2. Set Internet and local intranet security zone settings to "High" to block ActiveX Controls and Active Scripting in these zones. This will help prevent exploitation but may affect usability; therefore, trusted sites should be added to the Internet Explorer Trusted Sites zone to minimize disruption.

To perform this task, press Alt+T with the Internet Explorer window open and active, then O for Internet Options. Click the Security tab, then move the slider for Security settings for this zone to "High". Perform this task for both the Internet and Local Intranet zones in the Security tab. Click Apply and then OK to close the window.

3. Configure Internet Explorer to prompt before running Active Scripting or to disable Active Scripting in the Internet and local intranet security zones. This will help prevent exploitation but can affect usability, so trusted sites should be added to the Internet Explorer Trusted Sites zone to minimize disruption.

To perform this task, press Alt+T with the Internet Explorer window open and active, then O for Internet Options. Click the Security tab, then click Custom level.... Scroll to the Scriptingsection of the settings, and under Active Scripting, click Disable. Perform this task for both the Internet and Local Intranet zones in the Security tab. Click Apply and then OK to close the window.

Detailed reference link: technet.microsoft.com/.../2757760

Dell E-support reference link: http://dell.to/SxzrjZ

Please reply if  you have any further questions.

Satya P,

Thankyou. I have carried out the suggested measures, which seem to address vulnerability issues rather than functionality, and have also checked reset, add-ons, connections etc., but I am still unable to open any webpage with IE9. Am still pursuing other help resources.

Hi John,

Thank you for the reply. Please reset IE 9 to defaults by running Microsoft Fix it: http://bit.ly/ry0f

If the issue persists, try these steps:

1. Open Internet explorer 9

2. On the menu bar go to Tools >Options >Advanced.

3. Scroll down to Security, and make sure "Do not save encrypted pages to disk" is unchecked.

4. Scroll down to Security, Un-check "Check For Server Certificate Revocation."

5. Under "Tools" go to "Compatibility View Settings", then choose "Display all websites in Compatibility View".

Please reply with the results.

Internet explorer is not a necessity. However if you like it, you may try using it. The best way to get Internet Explorer 9 is through the Microsoft download site. In order to ensure good functioning of IE9, you must ensure that all the 'important' updates are implemented. This should also include IE8 updates if required.

Satya P,

Thanks for your patience: I have worked through the MS Fixit and the other steps you advised, but there was no change in IE. That brings me to the "Next Steps" section of MS Support, and I would welcome any further suggestions.

RachaelJetkins,

Thankyou. My present situation is that this problem appeared just after recent updates for IE9/Vista were applied. (KB 2722913 and KB2744842)

Hi John,

Uninstall IE 9 from programs and features and restart the system. That will revert the browser to IE8. Check if IE 8 is working fine. If the issue is resolved with IE8, update to IE 9 through windows updates or download IE9.

Do reply with the results.

Thankyou, Satya P,

IE9 was not in Programs and Features:  I uninstalled it from Updates to revert to IE8.  No change: the issue is still there in IE8.

Would you advise (1) trying System Restore to a date before the issue began, or (2) uninstalling the last two Cumulative Security Updates, KB2722913 and/or KB2744842 ? The issue began just after the first of these was installed.  This worked at an earlier stage, although I assume it is not advisable as a permanent fix. Would it tell us anything useful?

John.

Hi John,

I would suggest to uninstall the two cumulative security updates to see if that resolves the issue. As you rightly said this would be a work around and not a permanent fix unless Microsoft releases a patch for this particular issue.

Thank you for working with me in getting this issue fixed. Do reply with the results.

Satya P:

Thanks. Uninstalling the updates does not now fix the problem, although it did earlier, soon after the poblem began.

Other users have apparently had issues with IE9, after the updates were applied, although not all exactly the same as mine. I am not sure if it is a general problem, or just some corruption in my system.

Regards,

John.