I keep getting blue screen and error message to remove this file from system. spooldr.sys

Question

HP Officejet 4500 Wireless All-in-One Printer - G510n    w/operating system     Windows XP Professional
I installed the printer in February and the disk did not finalize the setup process.  I went online and
down loaded the drivers and software that was offered from the HP website.
The printer works, but as the months have gone along, I keep getting updates for the printer and
the system needs to reboot and it does automatically.
Now I am getting a blue screen with a critical dump error message.  HP error reporting keeps sending
the same message back to restore to earlier date before the updates.  That worked for awhile.  Now
HP Error system says that malware has corrupted and needs to remove system file     spooldr.sys
Is this in your driver software.  Spooldr is the system that caches pages of data for printing in chronological
order....
Can I uninstall my software and drivers and change to the plain & simple, print and scan to prevent the
spool driver from loading to my system?

Answer 1

Thank you for your input.  But, It is amazing that you can tell me that I was infected with  rootkit. 
Without information as to how to fix, your information is after the fact and useless.
I used the Safety Scanner provided to me by HP.  A full scan didn't detect any Malware in any files on my system.  But the last screen dump provided the information that   spooldr.sys  was corrupted and  needed
to be removed.  
Coming into HP Form, I did read on the HP website that my system Windows XP Professional was not listed
and noted that the software may have not been just what I needed.  This was the reason for the question
about uninstalling and reinstalling less of the program.  I really don't need my printer to print backward and
that is all I see that it is doing that other printers don't.
Besides, Kudos goes to the person from HP who sent the email,  suggesting I used the HP Update software and drives recommended  for my computer system.  Computer, printer is working, back to normal and hasn't taken a dump since, I uploaded  software and drives for Windows XP Professional.