Computer Security & Viruses/task manager disabled

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Question
hi for last one month ,
1-whenever i press CTRL-ALT-DLT an error msg comes " task manager has been disabled by your administrator" .
2-my task bar has gone at the top of screen and it is not coming at its actual position (this happened spontaneously)
3- in an open window when i click on tools , then i find that " folder option" is missing.
to tell you that all this happened simultaneously. i feel some sort of virus is doing this business.
please help.

Answer
Please help me by giving some more information. Is this your home computer? Or is it one you use at work or in some public place like a school or library? If it is a work or public computer, these things were disabled by the administrator responsible for preventing anyone from messing it up. If this is your home computer, then I can help you, but the solution I will give you won't work if this is a work or public computer.

Computer Security & Viruses

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Carolyn Meinel

Expertise

I cover Windows, Linux, TCP/IP and Ethernet security questions. I do not cover Mac, smart phones, or other networking issues.

Experience

Books by Carolyn Meinel: wrote a chapter for The Hacking of America book (see http://www.amazon.com/exec/obidos/ASIN/1567204600/happyhacker) My article Code Red for the Web for Scientific American was reprinted in the book Best American Science Writing 2002 (see http://www.amazon.com/exec/obidos/ASIN/0060936509/happyhacker). My book The Happy Hacker: A Guide to Mostly Harmless Hacking is now in 4th edition with a Japanese edition (see http://happyhacker.org/hhbook/).

Organizations
IEEE, AAAS

Publications
See a list with some online links at http://cmeinel.com

Education/Credentials
MS, Industrial Engineering, The University of Arizona Took a course in computer forensics at the University of Texas at Austin/

Past/Present Clients
DARPA, SAIC, Palmer Labs

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