URGENT help my screen goes completely black

[ancientrites]

this morning i installed some software after that my pc screen turns blank within five seconds all i can see is my curser.
steps i took:-
repair option even then it didnt work

one of my friend recommended me enter ctrl+alt+del,from there click on file,you will see new task(run) and i typed explorer.exe.
then i could see all my shortcuts but again after 5 seconds everything dissappears.

could anyone help.i have got one option that is to format my pc but there could be something else to solve this problem.
thanks

 

[ThinkFree]

System restore to a previous date

 

[ancientrites]

How to do that?

 

[ancientrites]

problem solved i formatted

 

[ThinkFree]

How to do that?

Though you have solved your problem but still I tell you. Go to Start menu>Accessories>System tools>system restore Here click on next and select any restore point prior to the date the problem started.

 

[ancientrites]

thanx asnvin i will surely do this if something goes wrong in future.