put in the system cd can liao.
u also need ur recovery CDs as well.
back up ur files such as prawns, sch works, project, dawn yeoh's
pictures, etc in ext hard drive.
after u done so, put in sys cd, shut down ur pc.
on pc, press F2, search Boot, change C drive to start up wif
cd.
then press exit n save.
the pc will run until it tells u to change ur cd to recovery
cd.
