Got a big problem with my Vista LT. I installed what was supposed to be a MS update but it was a virus I think. After installing and rebooting I lost my desktop. I tried using a restore point and it brought back my desktop but I lost my networking applet, use of media player and my sound. I booted to safe mode and dl highjack this and MBamm. Rebooted and tried to run HJT but it wouldn't run, the same with MBamm. I ran them in safe mode. Mbamm didn't find anythng and HJT worked but after checking it online there were no errors. Rebooted and the DT is gone again. Tried to install XP (lost my restore disks) and it says there is no hard disk so install won't work. all help will be appreciated.