Hi I am one of the experts here on Just Answer.com
The reason you are having the issue is the chrome install makes changes to the registry that need to be undone
have you worked with the computer registry before?
Please let me know when you are in the chat so we can work on the issue thanks
I switched the question to Q&A format as my browser was having an issue with the chat.
Essentially the main problem is google chrome makes changes to a few registry keys and when you uninstall it for some reason it does not change it back
The simple answer is if you reinstall chrome you can then make the changes to IE to make it the default browser and everything will convert to it.
If you do not want to reinstall chrome you will have to go into your registry and edit a few keys
This will open the registry of the computer.
Repeat these steps for htm and .shtml keys if they exist. You may also want to check the xhtml and xhtm keys
Have you tried reinstalling IE,
The fact that it cannot be set to default browser is a little troubling the registry fixes simply tell the computer what program to use to open links but this issue maybe a little more buried in an IE problem.
I would try installing the latest IE version which can be found here http://www.microsoft.com/windows/Internet-explorer/worldwide-sites.aspx
Also if you don't mind go back into the registry to make sure your changes to the registry saved
well this might sound odd
But one thing to try is the following
Reinstall Google Chrome
Let Chrome become your default browser.
Then while chrome is installed switch your computer to having IE be the default browser. let me know if this works for you