i just downloaded the world of warcraft free trial.and after just exiting it my computer turned off now i cant even get on the computer for 3 minets befor it shuts off.i tryed safemode and system restore i deleted wow but it just turns off after i turn the computer on....ne help?

It might be overheating. Try installing Speedfan and monitoring the temperature. Let me know if any of them [except GPU] get over 70 C. What is the make/model of your computer? If it is a desktop you can get a can of compressed air and clean out your CPU heat sink and fans and make sure that all of your fans are working. Caution: when cleaning out the computer it must be turned off. Do not put your hand in the computer while it is turned on. Protect you computer from ESD.

Also right click on my computer/computer --> manage --> Event Viewer --> Windows Logs --> System. Look for entries with an X. Please tell me what the most common entries are.