hi chikomoto,
a computer that just randomly shuts down could be hardware, software or posssibly malware related. lets get a starting point with a HJT log. please start a new topic and post a hjt log in this forum. I will look for it there:
http://forums.tomcoyote.org/index.php?showforum=27
HJT:
Downloads:
Please make sure you have the latest version. HJT 1.99.1
http://www.downloads.subratam.org/hijackthis.zip
If you are unfamiliar with zip programs get HijackThis.exe here:
http://www.merijn.org/files/HijackThis.exe
First put hijackthis into a permanent folder.
Do this first - go to C: and create a new permanent folder.
Example C:\AntiSpyWare or C:\hijackthis
This is necessary to ensure you have backups should anything go wrong.
Then put (or download - choose "save" not "run") the hijackthis.exe file in this folder.
If you downloaded a zipped HJT file unzip it to the permanent folder so you have C:\hijackthis\hijackthis.exe.
Example of the wrong way:
C:\DOCUME~1\Name\LOCALS~1\Temp\Temporary Directory for hijackthis.zip\HijackThis.exe
Running hjt from the wrong folder may delay assistance as your helper will have to ask for a new log.
If in doubt use this link to get HijackThis.
Save it to your desktop and then double-click to run it.
It will install the program in c:\program files\HijackThis.
Double click HijackThis.exe.
Hit None Of The Above, just start the program.
Hit Scan.
When the scan is finished, the "Scan" button will change into a "Save Log" button.
Click that, save the log somewhere, and copy/paste the hjt log into new topic in the forum above.
shelf life