You have to leave the age, make, and model of your laptop. Also list all of the fixes to have tried.
Here are my suggestion.
Download Avira rescue CD. It can be use to rescue your files. http://www.free-av.com/en/tools/12/avira_antivir_rescue_system.html
you will have to burn it on to a CD.
If you do this you will have to change your boot order to Boot from CD first. You can change it by pressing F12 and go to boot order. Change the primary boot form Hard disk to CD. I think you can also boot a jump drive if you cannot burn the CD.
I hope this helps
I have been searching the web for all possible way to fix my laptop. Unfortunately, it was IMPOSSIBLE! I put aside my laptop for a week. So I thought it will be back to normal. But it didn't. Everytime I switch it on, it shut-off suddenly. When it get to "Launch Starup Repair", it shut-off too. I click everything I can, but nothing works. Even all the Safe Mode. I will still end up to the black screen with cursor before login. I just want my important files inside. Just ONCE, let me login and take every important files and I can gladly throw the computer away. Please help me. Please !