I added a 3TB backup disk to my Dell 64 bit Windows 7 system (12 GB RAM ), and in order to access the entire space I formatted it GPT. In my everyday use, it seems to be fine, but when I run CHKDSK on the drive I get numerous messages that look, for example, like this:

Detected orphaned file Chkdsk20131217005359.log (882), should be recovered into directory file 17.

If I run CHKDSK/F, CHKDSK claims to be recovering these orphaned files, but I don't see any evidence that it has done anything at all.

Is this behavior some sort of artifact of Windows 7 not fully supporting GPT? If so, is there some other program that I could use to check the health of the drive and make the sort of corrections that CHKDSK/F can make on supported drives?

Thanks for any help you can give,