Drive not accessible

[mbernhardt]

For some reason, my Windows 8.1 installation has 2 partitions: 1 is about 14GB, bootable and nearly full, with Windows installed. The 2nd is about 111GB but is "not accessible" when I boot from my USB drive. The smaller one is the C drive, the larger one is the D drive.

When I look at it from another Windows machine, I see those 2 partitions but the larger one is readable. It has a Windows image file on it which is identical to the smaller drive.

So, right now this is useless because although I can run Windows, my disk space is unusable since it's all on the inaccessible drive. Can someone tell me what's going on?

[admin]

Please run chkdsk to scan the larger partition (D and see if it have file system errors.
You can refer to the link: http://technet.microsoft.com/en-us/libra...a6a4e.aspx

[mbernhardt]

Let's skip the other thread, no point in using 2. Here's what I got. When I ran it on restart, nothing changed. In fact, it would restart after running it and then run it again. I cancelled it after the 3rd time. When I look at it from another PC, the only thing I see on it is a disk image that's identical to the C drive. Any idea what the heck is going on? It seems like I'm mounting a disk image as my C drive, which actually lives on D, and D is locked. I can blow it all away if you think that's best, but I would like to know how this came to be!
C:\Windows\system32>chkdsk /f d:
The type of the file system is NTFS.

Chkdsk cannot run because the volume is in use by another
process. Chkdsk may run if this volume is dismounted first.
ALL OPENED HANDLES TO THIS VOLUME WOULD THEN BE INVALID.
Would you like to force a dismount on this volume? (Y/N) y

Chkdsk cannot dismount the volume because it is a system drive or
there is an active paging file on it. Would you like to schedule
this volume to be checked the next time the system restarts? (Y/N) y

This volume will be checked the next time the system restarts.