My Pc Shuts downs by itself frequently

Dear Computer Experts

My OS Is Windows XP SP2

Lately i am having trouble with my pc ..
Its shuts down by itself and when it starts again it shows the following in the error report :

BCCode : 1000008e BCP1 : C0000005 BCP2 : F83B0846 BCP3 : ED4B6870
BCP4 : 00000000 OSVer : 5_1_2600 SP : 2_0 Product : 256_1


C:\DOCUME~1\user\LOCALS~1\Temp\WER10a4.dir00\Mini091607-16.dmp
C:\DOCUME~1\user\LOCALS~1\Temp\WER10a4.dir00\sysdata.xml



I have tried disabling the auto restart but now instead of restarting it shows a blue screen with error msgs


i have also tried deleting the above files mentioned but it does not help



i would be very happy and grateful if anyone could guide me on how to solve this error

thank you