Another most common problem faced due to virus infection is when certain types of virus like rontokbro or brontok, disable command prompt.
The simplest method to get your command prompt back is to add a registry key , but you should be having registry editing is enabled.
type REG add HKCU\Software\Policies\Microsoft\Windows\System /v DisableCMD /t REG_DWORD /d 0 /f
Sunday, October 25, 2009
Lemuel