Our ninth Q & A of the week comes from Brian via the PCstats reader feedback page
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Q: Please can you explain how to rid myself of
Knoppix 3.7 on my drive? I tried it to see what it was like and now theres a
section of the drive which I believe is called the boot sector I can't seem to
get rid of. Theres 17Gb that Ive lost, I have two 120 Gb Western Digital Special
Edition Drives so 240 Gb Total in Raid array but Computer says 223 Gb Total!!
Any ideas of how to regain this amount?
A: The bad news is that you can't regain the lost
space... The good news is you never lost it in the first place. 223GB
is about the correct amount of storage you can expect from a twin-120GB drive RAID array,
due to the way that hard drive manufacturers advertise their products.
Gigabyte is 1,073,741,824 bytes according to Windows XP and every other
operating system, but all major hard disk manufacturers advertise
their drive's capacity as if a gigabyte was exactly 1,000,000,000
bytes. This means that while your Western Digital drives say they
have a capacity of 120GB, Windows says they have a capacity of around 112MB
(since 120*1,000,000,000/1,073,741,824 = 111.8). With this taken into
account, your 223GB
RAID drive sounds just
Knoppix should not leave any significant trace of
itself on your system, and certainly not 17GB worth.