Tried to install AVG but an error message came up saying that the windows installer could not be accessed tried to install McAffee an error message also came up saying that there were threats on my computer preventing installation of the antivirus
Sounds like a virus has disabled windows installer.
Click Start/Control Panel/Administrative Tools/Services
When the services window opens scroll down near the bottom and look for Windows Installer. Double Click on Windows Installer then click START when it opens. Press Apply, Press Ok, then reboot and see if the problem is solved.
If not Reinstall Windows Installer:
The reinstall varies depending on your operating system so go to www.google.com and in the search box type "reinstall windows installer xxxxxx" (without the quotes and change xxxxx to your operating system such as Windows XP, Windows Vista, Windows 7).
Click the link and follow the reinstall instructions from Microsoft's site.
SOURCE: i think i have a
Hi
If you have a virus,worm,trojan,etc on your computer.
Go to the following website and download,install and run the FREE Microsoft Safety Scanner.
It will remove the virus,trojan,worm,etc from your computer.
It may take quite a while to finish, it all depends on the size of your hard drive.
Once the Microsoft Safety Scanner is completed running, it should have removed the virus,trojan,worm,etc. from you computer, but if it didn't remove the virus,trojan,worm,etc from your computer then it will give you an option to connect (real time) with a Microsoft professional (FREE) and he will take over control of your computer (with you permission) and finish the removal process.
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http://www.microsoft.com/security/scanner/en-ca/default.aspx
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