Phillip says his Internet Explorer stalls on him. Does he have to reformat and reinstall Windows? Leo says no. He can just reset Internet Explorer. Phillip should go into Tools > Internet Options > Advanced options > Reset. This will wipe out everything - including all the cached stuff - and reset it to the default configuration.
If that doesn't resolve the issue, Phillip can run the Windows Installer and select "Repair." Leo also says Phil can run the Windows System File Checker from the command line by typing "sfc /scannow." That will replace any damaged system files. Another thing he can run is the Windows Malicious Software Removal Tool (mrt.exe) by clicking Start > Run, and typing "mrt.exe." Then he should choose to do a full scan.
It may be that Phil has a browser hijack tool that's causing the issue. Leo suggests updating Internet Explorer, and running it without any extensions. To do that, he can go to Start > Run, and type "iexplore.exe -extoff"
Lastly, Phil could just use Google Chrome instead.