I have 2 PCs both with xp. After downloading 4.8 Home, both PCs would not boot up. They would get to the point of the wallpaper but no icons or start menu. After rebooting in safe mode and doing a system restore, I removed Norton and tried again, same thing. I let one pc run through the full scan at boot and moved several infected files to the chest. Now that PC is still doing the same thing, the only difference is it is doing the same in safe mode also. I am able to open programs through the task manager and everything seems to run fine except I E 7. I tried to open windows explorer ( not IE) and it appears to be missing the exe, Any Ideas?