Internet Explorer will not open

Hello Irvin,
We understand how something like this can really try your patience. We sincerely apologize for the difficulties you are currently experiencing. Are you able to open the other browser in your pc like ( Google chrome )?
Please feel free to contact us for any further assistance. Thank you.

After installing and using AVG Performance, I am unable to open Internet Explorer (in Windows 7).  The program (IE 11) is still there (re-installed just in case), but it will not open.  I have turned off the firewall, rescanned, rebooted many times, reviewed all my changes for evidence of anything relating to IE but am unaware of anything that could have caused this to happen.  I have no available restore point that precedes the AVG installation.  Any suggestions please?

Yes, Google Chrome is functioning without any problems.