Windows 7: 64bit crashes BCCode:d1

I have been getting alot of strange crashes lately and was curious if the experts can help.

Thanks in advance for your help.



Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.256.48
Locale ID: 2052
Additional information about the problem:
BCCode: d1
BCP1: FFFFF8800131C63C
BCP2: 0000000000000002
BCP3: 0000000000000008
BCP4: FFFFF8800131C63C
OS Version: 6_1_7600
Service Pack: 0_0
Product: 256_1
Files that help describe the problem:
C:\Windows\Minidump\080211-20529-01.dmp

Most glaring problem is sptd.sys

Please remove any CD virtualization programs such as Daemon Tools and Alcohol 120%.

They use a driver, found in your dmp,sptd.sys, that is notorious for causing BSODs.

Use this SPTD uninstaller DuplexSecure - Downloads

when you're done you can use this Freeware MagicISO Virtual CD/DVD-ROM(MagicDisc) in its place.

Thank you! I will try it.

Hi, I tried that. But blue screen happened again.
Here is the information.

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.256.48
Locale ID: 2052
Additional information about the problem:
BCCode: 24
BCP1: 00000000001904FB
BCP2: FFFFF88002F768D8
BCP3: FFFFF88002F76140
BCP4: FFFFF880012DD812
OS Version: 6_1_7600
Service Pack: 0_0
Product: 256_1

Attached is the new crash file.

My computer still blue screen everyday. The BCCode is different everytime. Attached is all the crash file. Hope someone could help me. Thanks in advance.