Nopes. The OS came preinstalled. I bought it through NUS.
When I reformatted it the previous few times, I brought my
laptop down to the NUS service center to get it done.
I had to fork out $15 for that service. Yikes.
do you have any partition ? ....
with partitions you can do a partial reformat around your disk
partitions, withou having to scrub away your OS ....
do it a few times, plus a downloaded scrubber, and you don't
have to sit through a full reformat