Your reports almost always reports error code A, the causes:
This error is typically caused by software or hardware incompatibility. The device name appears often in the message, which is a great help to correct this error. If so, try removing the device. If the message appears during boot, you can suspect an incompatible device, service system, a virus scanner or backup operation.
Did you install any new software, recently, any upadates for software, uninstall anysoftware. Bottom line, think about any changes that were made around the time of the first BSOD and report back.