There's definitely a C: drive :)
I definitely have a C: drive. I'm running the Windows 7 Ultimate Edition, 32 bit. My laptop is about a year old and came with Windows XP, but I upgraded to this version of Windows 7 around December. I can access my C: drive fine otherwise, saving documents, reading from, etc. It just doesn't show up in the Disk Defragmenter. My USB drive and External Hard Drive both do show up, and I find it odd that they do and the hard drive my computer came with doesn't. It's a pretty simple problem in terms of the symptoms.
Sorry, I'm new here, what other details would be helpful?
Here's a screenshot;
In the picture, in Explorer there are obviously 5 drives. C: hard disk, D: which is some HP thing that has been on my laptop since I got it, an H: drive which is my external Seagate Hard Drive, E: DVD drive (equipped with Starcraft!) and a virtual G: disk drive, but of the Hard Disk Drives (C, D, and H) only D and H show up in the Defragmenter (as can be seen in the windows on the bottom right of the posted picture).
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