Question : Problem: System failing when running scans, installing programs, and running programs.

Whenever I run a scan, install a program, or play a software game, i get one of these three error messages.  Until I disabled automatic restart I could only see the error page for half a second before it restarted.

*** STOP: 0x00000050 (0xFEE2043c, 0x00000000, 0xBF801233, 0x00000000)

*** win32k.sys - Address BF801233 base at BF800000, DateStamp 45f0146f   PAGE_FAULT_IN_NONPAGED_AREA

*** STOP: 0x0000001A (0x00041284 , 0xDE981001 , 0x000081ED , 0xC0E00000)
MEMORY_MANAGEMENT

I have had this HP pavilion ze2000 laptop for roughly a year and a half and never encountered any major problems before.  I did not install any new programs recently.  I run windows XP, and I install all automatic updates.  I have tried to run Norton, Spybot S&D, registry cleanup tool, and McAfee, but every time I try to  run a scan, I get the MEMORY_MANAGEMENT error code.

EDIT: I am now also getting the error code *** STOP: 0x0000008e (0xc0000005, 0x805AFB1B, 0xB8180B20, 0x00000000) about 2 minutes after I log in.

Answer : Problem: System failing when running scans, installing programs, and running programs.

Do you have adiagnostic cd to boot from and test the memory?
If not download memtest and run it to see if the memory is pulling errors