最近，我的电脑下载文件时会突然兰屏死机，并出现以下文字：
A problem has been detected and windows has been shut down to prevent damage
IRQL-NOT-LESS-OR-EQUAL

IF this is the first time you've seen this stop error screen , restart your computer.If this screen appers again , follow these steeps:

check to make sure any new hardware or software is properly installed. If this is a new installation , ask your hardware or software manfacturer for any windows updates you might need .
If problems continue ,disable or remove any newly installed hardware or software .Disable BIOS memory options such as caching or shadowing .If you need to use safe mode to remove or disable components , restart your computer ,press F8 to select Advanced startup options ,and then select safe mode .
Technical information:
*** STOP:0x0000000A(0xe14280f0 ,0x00000002 ,0x805FC478)
Beginning dump of physical memory
physcal memory dump complete.
contact your system administrator or technical support group for further assistance.
不知道是因为病毒引起，还是由于所谓硬件、BIOS或者软件导致的？请各位高手指点，本人不胜感激！
    我多次在安全模式下也杀不出什么病毒，是什么鬼原因阿？请各位大侠帮助阿！