Hello everyone, The following is the solution given by Tim (See above) to the “Black screen” problem. I followed his solution and IT WORKS!. Here is my comments about his/her help: “Hello Tim, Thanks for your help! I did exactly as you mentioned - Push simultaneously F8-Shift-Power On - and IT WORKS! (My computer has Windows 10 Home installed). Following is the info of my laptop I bought in 2008. Satellite L300-D - 044 System Unit Model #: PSLC8C-04401R (I went to Toshiba support website and tried what it suggests in Trouble shooting. It didn't solve the "Black screen" problem. Then I searched on the Internet and found Tim's solution. I tried what Tim suggested. And it works! Once again MANY THANKS TO TIM!”