Hey, I also experienced that problem last month ago, but I fixed it by using of WIPE A DISK CLEAN.
Note: All of your files in your second hard drive will be completely erase..
You will need to get to a command prompt.
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.
Now you need to "clean" the disk. A clean all operation is going to write zeroes to each and every byte on the disk and can take a very long time.
You MUST wait for this operation to finish.
Now here's how to clean the disk:
WIPE A DISK CLEAN
· 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)
Note: that in my 500gb hdd it takes around 3hours so be patience in "clean all" command..
Hope this can solve your problem...
Let me know what your question/ problem about this process and I'm willing to answer and help you.