Sometimes browsers do not display a web page. The cause of this problem is often due to a process named after sp.exe. To revert again to display your pages on your browser then you can simply search for the process and delete it.
Here is what is the process sp.exe:
this process indicates the presence of a key logger on your computer, there is a high risk to the security of your PC and must be removed quickly.
To make this process as follows:
1) Click on Start
2) Search (all files)
3) Enter sp.exe
4) Wait until the end of the research
5) If the research indicates the presence of sp.exe on your computer to delete it.