My pc is infected i need help fast?

ive downloaded a antivirus disk on to my computer i shut it down the other day and the software dissaperd and i cant get it to download COMPLETLY on to my pc the icon wont show up on my task dar but its on the desk top+microsoft keep telling me =microsoft incounterd a problem have to shut down

My pc is infected i need help fast?norton antivirus

Tried to download the anti virus disk but now it's not appeared.please check the anti virus is completely removed after that you can again the download anti virus. It may be helpful to you : http://antivirus.about.com/od/antiviruss...

Thank you

Damon Thomas

http://www.excelfilerecovery.com

My pc is infected i need help fast?security

To resolve this issue in Windows 2000 and XP you will need to perform the following steps:

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Change the settings for the Remote Procedure Call (RPC) Service in order to connect to the internet without the computer shutting down

.

Note: This does not work in every case.

To change these settings you will need to perform the following:

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Go to Start %26gt; Run %26gt; and type in services.msc %26gt; click OK

the services window opens

Scroll down the list and locate the Remote Procedure Call (RPC) service, it will have a Status of " Started ".