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Do you see the Toshiba Screen after you turn ON the laptop ?
Since when this problem started.
When was the last time your computer was working fine ?
I suspect it's a spyware/adware.
Would you like me to remote in and work directly on this issue ?
Is your computer connected to internet ?
Please click this link: http://www.justanswer.com/remotedesktop/join.aspx?Session=66977e92-85c6-4647-ac3f-2a5b76f00553
Then click "I Agree"Then download and run the Elsinore Screen Connect.
No problem. I would suggest you to perform a system restore to a date prior to when your computer was working fine.
Do you need the instructions on how to perform system restore ?
Keep me posted!
It goes into a on and off loop only when you try to boot the computer normally.
In safe mode you're able to go to the desktop.
I'm sorry to say the virus has corrupted your OS.
Do you've any important files in your laptop ?