Windows 7: Constant BSoDs

Hello, I am have been working and installing various utilities on my grandmother's computer. For some reason, however, I keep getting the notorious Blue Screen of Death. Although I have experienced more, the two I have recorded are the only ones I've taken notes of.

The computer is an eMachines EL1333, has an AMD Athlon LE-1660 2.80GHz processor, and 3.00GB of RAM. Here is the information recorded from two SEPARATE incidents:


Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.768.3
Locale ID: 1033

Additional information about the problem:
BCCode: 1e
BCP1: FFFFFFFFC0000005
BCP2: FFFFF80002A8B905
BCP3: 0000000000000000
BCP4: FFFFFFFFFFFFFFFF
OS Version: 6_1_7600
Service Pack: 0_0
Product: 768_1

Files that help describe the problem:
C:\Windows\Minidump\073011-26286-01.dmp
C:\Users\Virginia\AppData\Local\Temp\WER-45224-0.sysdata.xml






Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.768.3
Locale ID: 1033

Additional information about the problem:
BCCode: a
BCP1: 0000000000000000
BCP2: 0000000000000002
BCP3: 0000000000000001
BCP4: FFFFF80002A98CAC
OS Version: 6_1_7600
Service Pack: 0_0
Product: 768_1

Files that help describe the problem:
C:\Windows\Minidump\073011-31262-01.dmp
C:\Users\Virginia\AppData\Local\Temp\WER-52385-0.sysdata.xml



I've also attached the required files.


Thanks!