Just few hours ago my mum accidentally clicked [b]OK[/b] on those pop up things that appear in FS. Then McAfee VirusScan appeared telling us that the file [b]C:\WINDOWS\system32\ryllqw.dll[/b] is infected by the Vundo trojan and cannot be cleaned. I tried to Quarantine it but a pop-up window appear saying that [b]"Verify that the file is not write-protected and try again."[/b] I looked for a solution on how to change a file from write protected to not write protected. The solution asked me to right click on properties and change the attributes into Read-Only. But nothing happens when I try to delete the infected file. I then tried many software and still nothing happened. I tried System Restore but still nothing happened. That's why I came here for you to help me on how to delete this Trojan. Please help me if you know how to get rid of the said trojan. [b]Thank You[/b] in advance.