I have been trying to backkup selected folders on a Toshiba laptop and part way into the backup process the machine just shuts down. I have been trying to use Genie backup manager and have it set to send the files to an external Sony DVD burner. Why would this be happening? What else might I try in order to do the backup. The reason for doing this is that the laptop was originally infected with the Winfixer Trojan Horse. I removed this malware with a program called vundofix. Also, the laptop was overheating and I thought originally that it was shutting down because of that problem but it probably was because of the Trojan Horse - Winfixer. Any help would be much appreciated.