PC start up & shut down problem.

Asslamualikum.
Friends,I have faced many problem while operating my PC. Today I'll discuss about PC start up & shut down problem.
Problem 1: PC takes much time to start & shut down.
Solution:There are many reasons for this problem.First may be your OS drive(C:) has not much free space.I will say that you should keep at least 60% free of this drive.Second you should clean up your PC. CCleaner is one of the best soft in this circumstance.You can download it here.You can mannage your startup item & remove the unusual registry with this soft.Remind the more program you add in your start up the more time your PC will need to start up. Third you should use Disk Defragment that comes up with OS.Because though you clean your PC, garbeg value in your harddisk remains until defragmentation.

Problem 2:PC start & shut down automatically or start automatically after shutting down.
Solution:I think you are victim of dangerous virus.You should full scan your PC with a good antivirus with updated virus definition.For more please see the topic Virus, Worm, Trojan & Spyware in my blog.
Another possible reason is the service of your power supply hardware. .Because, when it can't give the service the PC shut down & suddenly when it can give the service your PC turn on. Check that in another PC, make sure that it is works.

Problem 3:PC cannot start properly or showing blue screen.
Solution:I think it is your hardware problem.Connect all the hardware properly(RAM,Graphics Card,Harddisk) with necessary installation soft.Your motherboard disk is very helpful here.Otherwise you should use Driver Genius, one of the most best soft for driver solution.You can download it here.