Hello everyone. I'm new here, and in need of some help. A couple of days ago my computer just started restarting out of the blue. No blue screen, no black screen, just restarting about every 20-30 minutes a couple times maybe up to an hour or so. Then it got to where it was just restarting without even making it to the Windows screen. I've been reading this site as it's a pretty reliable site. So I tried some suggestions from past articles before making a new thread. I updated some stuff, removed some programs, ran diagnostics, anti-virus/spyware/malware programs all with no results. After getting some minor updates last night for Microsoft Office 2007 finally it stayed on and worked great!! I thought that maybe somehow those updates were all I needed. I got up this morning and it was still on. Great!! No, not so great. I clicked the internet link to log on, and bam it restarted again not even making it to the windows start up screen. So I tried another thing I read which said to unplug everything from the computer including the power cord excluding the monitor. Hold the power button for 10 seconds, then plug in the power cord, power up and after a complete start up start plugging in everything else to see what's causing the error. So I did this, and now my computer won't even come back on. I'll post up the specifics below. I haven't downloaded anything except Office 2007 and another program Open Office for my college. I removed Open Office and got the updates to Office 2007 lastnight as I said earlier. Other than that no downloads, and the computer has been running great. I run CA (Compter Associates) anti-virus everynight and the anti-spyware runs at start up and at night. I also have the CA Firewall, Malwarebytes, Super Anti-Spyware, Advanced SystemCare Pro and CCleaner. I've ran all these and came back with only a few "low risk" spywares which I got rid of. HP Pavilion s7320n Slimline PC Windows XP Media Center Edition 2005 CPU: Intel Celeron M Processor CPU Speed: 1600MHz/400MHz Cache Ram: 1024KB Motherboard: Manufacturer: Asus Name: PTGV-DM HP/Compaq name: Onyx2-GL8E Ram: 1GB - (2x512) Speed supported: PC2-4200 (runs at 3000) Type: 240 pin, DDR2 SDRAM Chipset: Intel 82915 G/GV/910 GL Express It says Uninterupted Power Supply not sure what this is. Also in Event Viewer I found the following errors: Error: userenv 1041 SYSTEm Warning: MsiInstaller 1015 Administrator Warning: Userenv 1524 Administrator Error: DCOM 10005 Administrator Error: Service Control Manager 7026 N/A Error: Service Control Manager 7001 N/A Error: ntfs 55 N/A DISK If anyone can help out I would greatly appreciate it. My wife uses this computer everyday for her college courses. Thanks!!