Need Help Window 7 starting up problem

[taka116]

I am using Lenovo A600 all-in-one desktop
Normally when i switch on my computer, it will first load the lenovo starting screen and then the window 7 loading screen.
The problem is now when i switch on my computer, after loading the lenovo starting screen, the whole machine will automatically shut down.
I have no idea about what is going on
Is the programme in my computer causing this issue?

 

[richc46]

In safe mode try to go to system restore. With system restore try to go back to good times.
http://www.sevenforums.com/tutorials/700-system-restore.html