After the computer can not boot directly into the system, the need to restart repeatedly on many occasions

After I boot the computer system can not go directly to the need to manually restart the repeated many times, and sometimes the computer will automatically stop the restart.Should not be poisoning, crazy fans have to wonder how it is going on?

A low voltage.Antivirus first, and then not do the following way:Ctrl + alt + del keys, tab into the process, Select explorer.exe, and then the end of the process, and then click -> new task -> Open:type explorer.exe, you can enter.But this method is cumbersome, it is best to re-look system installed.