Blue Screen of Death

Am getting Blue Screen of Death daily. Any help would be greatly appreciated. Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7601.2.1.0.768.3
Locale ID: 1033

Additional information about the problem:
BCCode: a
BCP1: FFFFF8A000D7F838
BCP2: 0000000000000002
BCP3: 0000000000000001
BCP4: FFFFF800030DC93C
OS Version: 6_1_7601
Service Pack: 1_0
Product: 768_1

Files that help describe the problem:
C:\Windows\Minidump\082714-25537-01.dmp
C:\Users\Owner\AppData\Local\Temp\WER-83725-0.sysdata.xml

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