You say that IE8 is not compatible with your employer's software. Can you tell us more?
IE cannot be removed completely and can only be uninstalled to revert to a previous version of IE if a previous version exists on the system. If your system came with IE8 already installed I am not sure you can uninstall then install an older version.
This Microsoft Bulletin tells more.
If you read that bulletin you will note that IE8 has a compatibility option. Have you tried that?
I hope that helps.
I need to uninstall IE8 since it is not compatible with my employer's software. Whenever I try to uninstall it, it goes through the uninstall procedure, but on restart the computer keeps getting stuck at "configuring updates 3 of 3" over and over it will reboot and come back to this screen. I have to do a system restore to be able to get back into my computer. Has anyone found a solution to this problem?