SGNDK,
Please follow the procedure to do a
Clean All on your hard drive.
The majority of following info is in the links already given to you.
GO TO A COMMAND PROMPT USING YOUR WIN 7 DVD
■Boot up from your Windows 7 DVD.
■At the first dialog window, press
SHIFT + F10 key combo
■You will have a
X:> command prompt
X: is a ram drive created by Windows 7.
· type
DiskPart,
Enter key
· type
List disk, Enter key
note the numeral of the disk you want to clean
for example purposes, I’ll be using the numeral
2 · type
Select disk 2, Enter key
· type
Detail disk, Enter key
this info will let you know if you selected correctly
· type
Clean ALL, Enter key
your entire disk is being overwritten with zeros.
This can take a considerable amount of time
· type
EXIT, Enter key (only after Clean is finished)
· type
EXIT, Enter key (this gets you back where you were)
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Your english is excellent. Congratulations.