when you disable a page file you may still need to remove it from your system. They are a hidden system only file so you might have to remove the file attributes.
start cmd.exe as a admin (windows key +x then type A)
cd c:\
attrib *.sys will show the names of the hidden system files in the root of your drive c:
then you would use the command
attirb -H -S pagefile.sys
then
del pagefile.sys
it has been a while but I think it should still work if the file ins not in use (ie you have rebooted after you disabled that drivers pagefile)
Note: windows will always require a pagefile but if you to put one on disk it will set aside some of your RAM and make one inside your memory to page with. Without a pagefile on disk you will not...