Scenario - I had a PC with 2 HDD. Both were 250GB drives.

C:/, master primary, had 50GB used
D:/, master slave, had 100GB used. (150GB free.)

So, now then.

I was planning to format + reinstall Windows onto C:/, right? Easy enough. So, I went ahead, loaded the disc in, booted to disc, got to the screen where you select drives to install / format, partition, etc... Right? So, I clicked C:/, and formatted it. It formatted perfectly.

Now, I do not exactly remember, I may have seen that D:/ was affected somehow when I formatted C:/, or it may have been after I installed windows to C:/, but either way, after formatting C:/, my D:/ drive was showing as a 150GB disk. Not 250GB with 100GB used, and 150gb free space, but a disk showing a toal of 150GB size.

errrrr

edit: I have not written any data to the disk since this has happened. I think it was powered when I booted to windows, where I checked the disk properties and saw the disk size as 150gb within windows, but i didnt write anything to it. after seeing that, i removed the disk from my pc and ya its been sitting here for a year.

You can download a free trial of Get Data Back or R-Studio and see what they can find, if you like what you see, you can pay to activate them and have full access to what you saw.

You may need a 'USB to IDE/SATA adapter' off ebay, be sure to get the one with the power supply.

Depending on what version of Windows and how you formatted, results may vary.

Dave