On an almost daily basis, I find myself battling rogue antivirus infections. They are not always avoidable and sometimes pesky to remove. Best case is 1 hour (like today!); usual case 4 hours; worse case 7 and worst case is the computer has to be reimaged (wiped and start over again).
Rogues are scareware: they scare you into downloading and paying for them. Don't pay these crooks!
To avoid: don't log on with administrative priviliges, use a safer browswer (not IE), don't use msn as your home page and update everything all the time.
To fix: go into safe mode, download malwarebytes antimalware, update and scan. Sometimes processes are running that don't allow this. That's when you need the help of a technician. You don't want to end processes that can cause instability of your system.
After a rogue infection is cleaned: change passwords on all internet accounts. Your information may have been hijacked and it's a good idea to change passwords just in case. It's easy to remember a new password and not so easy to recover from an identity theft.
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