Norton AntiVirus 2012 is a brand new version of antivirus program that produced by Symantec, it aims at protecting the computer from various Trojan horse, spyware and worm virus in a more comprehensive way. One cannot deny that the world-famous antivirus program will bring more benefits and conveniences for the computer user, but the high CPU occupying and Norton AntiVirus 2012 uninstallation are often the part that many computer users complain about.

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Windows PowerShell is Microsoft’s task automation framework, if you are using PowerShell 1.0 in your computer, you may want to update it to the latest version of 2.0 CTP3. However if you didn’t uninstall the previous versions of PowerShell, the 2.0 CTP won’t install and but bring you the below error:

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