I got my computer infected with a trojan. I ran a scan of the system and got all the infected files removed. But some folders in my system including windows, are now in the hidden state. I am now able to go to those folder directly and have to type their path in the address bar. If I try to change their hidden state the check box is dim. So can I change the hidden state of those folders.
Thanks.

try to download avg anti-virus, find out if it will solve the problem..or try going to the command line use the attrib.exe to change the status of the hidden folders...