hi, OS - Win XP SP3 i ran some pretty complicated malware-removal programs since my PC (on the office network) was showing loads of trojans and other malware. in the order of running, i ran Malwarebytes, MGTools, Combofix with the windows recovery option. Then, on not having found anything substantial, I uninstalled Combofix with the /u optiom and deleted C:Combofix and later, proceeded to delete C:MGTools. Post this, I ran SuperANTIspyware.Found some malware by the last named. I cleaned up the PC of all the crap and then, did a reboot. The PC allows me to do a Ctrl+Alt+Del log in, and once I hit Return after entering the password, it just shows me the blue background to the desktop - No items, no menus. Same thing happens in safe mode. Ran a SFC Scannow. Gave it the original boot disk. Rebooted after SFC. Again, the system wont move beyond the blue screen. Later, I discovered a solution. 1. I do a Ctrl Alt Del 2. go to File 3. go to New Task (Run) 4. Type explorer.exe and everything is alright. But on trying to reboot, the blue screen is a constant. Tried System Restore post this - doesnt allow me to go to Yesterdays date. Allows me only to go back to four hours prior to now. When SFC Scannnow did not help me, what will?