Why is reboot the computer?

Users questions: Opened on the restart, started to press (f11) to once again restart the computer automatically restarts
Experts answer: There are many reasons. Restarts, the fan will "squeak slightly" about the sound (too much dust with a long time fan, the other reason is that the fan poor quality), the hard disk with bad sectors long, and sometimes Climate will affect you is important that the black voice sound from the fan of computer reboot reasons: 1 may be infected to see whether the abnormal boot entry (Start ** run ** enter msconfig), in the Explorer view process, without exception, to kill anti-virus with anti-virus software. 2. System Properties * * Startup and Recovery (settings) ** system failure (automatically restarted option to remove) 3.CPU temperature is too high, you use the software to see the CPU temperature. Or the inside view into the BIOS .4. Chassis power supply, or is the chassis to the hard drive power connector aging loose, (I restart the computer before Encountered this problem, because I often hang two hard drives, the results gave the power connector broke, always to the lack of hard power reboot) 5. You have to connect a printer or computer is the other outside equipment to In addition to look at .6. outlet, or is their home voltage instability.
  • This information provided by the users.Thanks!