Toshiba labtop can't shut down black screen

Well actually I did a little research, and I found out that Antivirus8 is a fake anti-spyware program (like antivirus7 and many others) that promotes through the use of trojans and pretends to "scan" for viruses and displays dozens of alerts listing infection that are not real. The alerts are constant and they actually trick people into buying anmd installing the system. The prices of the monthly pay of the fake program are unbelievebly expensive,like over $49.00 and it just gets worse and worse and it is considered EXTREMLY DANGEROUS IF YOU ALLOW IT INTO YOUR SYSTEM!!! I got the information from this link:

http://www.2-viruses.com/remove-antivirus-8

What was weird about it though is that before I got Antivirus8, I uploaded the norton security system and noticed that Antivius8 was clinging on to the system, acting like It was apart of norton's system! That's why I though of it as a trojan horse. I had to get rid of the virus by restarting the computer back to it's original settings. I hope that's enough information for you :)

Btw, I solve the problem already by shutting it off.....I actually left it on stand by when it happened and I was overreacting.....thank you for your help though!!! :)

if you havent ever heard of a program or never see it or used it a great way to protect your self, docs,and every thing else u use on your computer so I would always do a little research before you buy a program or software.

F-Secure but Kaspersky if fine, however from my experience, I would stay away from Symantec Norton products, they claim high but poor on performance. Should you request their assistance to desinfect a virus for which it was suppose to protect you against, they charge $99.95 USD.

F-Secure has an intrusion alert feature.

Take care

Thank you :)