Formating

I have this problem installing win2k. Everytime I do and installation I install all the necessary drivers then I update with windows update then next time I boot up I get "the blue screen of death". So I boot up my computer in safe mode and I have noticed when that some how there are now 5 drivers for my NIC card in the device manager. This seems to stop me from booting up in normal mode so I booted up in safe mode and tried to delete these drivers and windows will not allow this, it just freezes up. So I tried to disable them and again windows freezes up. Next I had a brain storm and I figured I woud disable my NIC in the bios. I still cant boot up in normal mode. So once again I boot up in safe mode. Now I have notice that out of the 5 drivers that were there before there are only 4 left, so windows has deleted one now that I have disable the NIC in bios, oddly enough it deleted the right driver. Now out of the 4 that are left 2 are disabled and 2 are not (and none of them are the right one to begin with. Again I have tried to delet, disable or unistall any of these NIC drives to no avail. The following are the drives that are left.

Direct Parallel
WAN miniport (IP)
WAN miniport (L2TP)
WAN miniport (PPTP)

Does anybody know what these are and why they got installed on a fresh version on win2k after the windows service pak 4 update. I have quite of bit of experience doing this and I dont beleive I did anything wrong in the installation.

thanx