A problem has been detected and windows has been shut down to prevent damage to your computer.
DRIVER_IRQL_NOT_LESS_OR_EQUAL
If this is the first time you've seen this stop error screen, 
restart your computer. If this screen appears again, follow these steps:
Check to make sure any new hardware of software is properly installed.
If this is a new installation, ask your hardware or software manufacturer for any windows updates you might need.

If problems continue disable or remove any newly installed hardware or software. Disable BIOS memory ooptions such as caching of shadowing.

If you need to use safe mode to remove or disable components, restart your computer, press F8 to select advanced start up options and then select safe mode.
Technical information:
*** STOP:0x000000D1(0x87801000, 0x00000002, 0x00000000, 0x807EBEEO)
*** yk60x86.sys - Address 807EBEEO base at 807C5000, Date stamp 45bdACC7

Collecting data for crash dump...
Initializing disk for crash dump...
Beginning dump of physical memory.
dumping physical memory to disk :100
Physical memory dump complete.
Contact your system admin or technical support group for further assistance.