If your windows is not showing folder options, registry editor or task manager then here is a little trick to enable these.

But this is temporary. You will have to remove virus after that from your computer. 

Create a restore.vbs file

Edit it in notepad and write these lines in it.

On Error Resume Next
Set shl = CreateObject(”WScript.Shell”)
Set fso = CreateObject(”scripting.FileSystemObject”)
shl.RegDelete “HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools”
shl.RegDelete “HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr”
shl.RegDelete

Save it anywhere and run it. You will get these options back.

For more tip on this virus infection and removal help see the article located here. 

http://leopardsag.wordpress.com/2007/07/06/avg-norton-kaspersky/