Unless there is any unpartitioned space currently on the drive (ie unallocated space) you won't be able to make any new partitions on it without deleting the existing partition. This will obviously mean that you'll need to re-install Windows from scratch after new partitions have been created.
I would like to partition part of the hard drive of my new PC (HP P6645A - Intel Core i5 650; 3.2GHz; 6GB DDR3 RAM; 1T hard drive; DVD-RW; 1GB ATI HD5450 Graphics; TV Tuner; Windows 7 Home Premium)
I have downloaded some software via CNET (Mini Tool Partition Wizard) to do this. I have read the reader's reviews of the software, which seemed to be okay. However, I am a bit afraid of wrecking my PC, in particular my NEW PC.
Is is possible to do any irreparable damage to the hard drive?? Any advice or reassurance would be welcome.