setting up sfs problems

[Chartus]

I'm trying to install SFS on a 20 gig hard drive for use in an A1200.  I start winuae with a 3.1 install  floppy image.  Change HDtoolbox to uaehf.device and save.  doubleclick on HDtoolbox, change drive type , define new, change the name to ram:junk click read configuration;  information changes as expected,  click on continue, OK,OK,  save changes to drive.

It errors out saying that I still have PC partitions or don't have administer privaleges

I ran UAE as administrator and I have cleaned the drive beforehand so what is the problem?

Any ideas.

[Chartus]

Yes I used diskpart to clean the drive. It reported that it successfully cleaned the drive.
  I am using a usb cable to set things up so removing it after cleaning might do the trick.  I didn't even think about the antivirus protection though.
  I will give it a try after I get off work later.
  Thanks everyone.

[Chartus]

I got past the windows problems by connecting the hard drive up to my 1200.  
So now its got its RDB set up.

So how do I create partitions bigger than 4 gig with hdtoolbox.  Some updated scsi.device or something.

[Chartus]

I found that video before when I was looking for help but when he said he was using wb3.9 I always stopped.  I finally watched
the complete video and it does help after about 12 minutes so I should be able to get things going with my 20 gig drive

What is better from a memory standpoint.  SFS or PFS3.  I ask because I have limited memory at the moment (A1200 using a 2Mb SRAM card)