BlueScreen Errorcode = 0x1000000a ? How to check register reliably?

BlueScreen Errorcode=

The computer has rebooted from a bugcheck. The bugcheck was: 0x1000000a (0xff1711f2, 0x00000002, 0x00000000, 0x804d9b64). A dump was saved in: C:\WINDOWS\Minidump\Mini011710-01.dmp.

Manifest.txt:

Server=watson.microsoft.com
UI LCID=1033
Flags=1696080
Brand=WINDOWS
TitleName=Microsoft Windows
DigPidRegPath=HKLM\Software\Microsoft\Windows NT\CurrentVersion\DigitalProductId
ErrorText=A log of this error has been created.
HeaderText=The system has recovered from a serious error.
Stage2URL=
Stage2URL=/dw/bluetwo.asp?BCCode=1000000a&BCP1=FF1711F2&BCP2=00000002&BCP3=00000000&BCP4=804D9B64&OSVer=5_1_2600&SP=3_0&Product=256_1
DataFiles=C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\WERec6b.dir00\Mini092109-01.dmp|C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\WERec6b.dir00\sysdata.xml
ErrorSubPath=blue
DirectoryDelete=C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\WERec6b.dir00

My Latitude d505 / Windows XP  sp3 has worked well for many years. Also 3G-broadband Internet connection via USB has worked ok, but updated year ago.

After running DriverUpdaterPro  from net, and following register-check-up, I don't know if something may be corrupted, it maybe a harmful download.

BlueScreen with same errorcode is now coming irregularly, but only with 3g connected with upgraded speed 1-8 Mb/s..

The 3G/USB-stick is

GlobeTrotter Connect:
Publisher:Option NV
Version: 3.1.0.1086

with

sysdata.xml:

-
  Conexant D480 MDC V.9x Modem
  PCI\VEN_8086&DEV_24C6&SUBSYS_542214F1&REV_01
  Modem
 

How to check register reliably?