Bluscreen error

hi,
i have a DELL inspiron 4010 laptop, with windows 7.
now it shows blue screen error..
Poblem details are..

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 16393

Additional information about the problem:
BCCode: 1000007e
BCP1: C0000005
BCP2: 90FC05D8
BCP3: 8D987BEC
BCP4: 8D9877D0
OS Version: 6_1_7600
Service Pack: 0_0
Product: 256_1

Files that help describe the problem:
C:\Windows\Minidump\011612-23400-01.dmp
C:\Users\Mr\AppData\Local\Temp\WER-34460-0.sysdata.xml
 
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