This error is on a Toshiba Satellite Win 7 Home Premium. The system runs for 1 minute and the announcement comes in one minute after the warning it shuts down and reboots.. It happens in safe mode and normal. The system has Microsoft Security Essentials working and shows two viruses quarantined. Repeated copies of the same virus with each shutdown and reboot. Shutdown -a has no effect on this error. I have scanned with Malwarebytes from a good pc. I have run Kapersky Rescue 10 and have found a dozen virus / trojans and cleared them but makes no difference. There is a regedit cure listed and I've tried with no change. There is a thread about a corrupt service, NTRU TSS v188.8.131.52 TCS but I can't find the service in list of services or msconfig. It's very difficult to do much diagnosis with only 2 minutes of up time before it reboots. I've tried to take if off the internet and that has no effect. Your help would be appreciated.