new XP Pro install, why Unallocated space ?

Discussion in 'Hardware' started by Wallace, Jun 28, 2009.

  1. new 160 GB drive, new install of XP Pro, format - NTFS gives:

    C: 127.99 GB . . . 21.06 GB Unallocated = 149.05 GB total
    free space is 122.54 GB - - 5.45 GB installed programs

    i don't need the Unallocated 21.06 GB but want to know
    how, why was it created ? and where's the missing 10.95 GB ?
  2. Probably from a previous installation. Did you have linux or another OS on your hard drive? Some PC Makers put on a rescue partition I think HP and Dell may do this. Anyway, Windows should be able to delete that partition and then you can install XP on the entire space
  3. mcmChgo


  4. thanks mcmChgo
  5. jprad


    Drive manufacturers use a base10 gigabyte while the OS reports it as a base2 gigabyte.

    160,000,000 / 1024^2 = 152.58
  6. thanks jprad
  7. If you slipstream SP3 into the WindowsXP install CD, you'll be able to have 48-bit LBA and format a partition to full-capacity.