Windows 10 indexing selects wrong drive

I recently upgraded Windows 8.1 to 10 Pro.  Before I upgraded I cloned my 8.1 onto a new HDD.  I then replaced the 8.1 drive with the cloned drive and upgraded to Windows 10.  After the upgrade I put the 8.1 drive into the second HDD slot.  So my C: drive is Windows 10 and my D: drive is Windows 8.

Windows 10 will not index my C: drive.  No matter how I setup the indexing options it always wants to index the D: drive.  I even disabled indexing on the D: drive.  Here is a screen shot when I check to index the C: drive:

You see that it includes the D: drive.

I click OK then click Modify and now both C: and D: are selected but only D: shows up in the included locations.

All suggestions welcome.


I had the same problem after upgrading to Windows 10 and it nearly drove me nuts. I eventually came up with a workaround though: Instead of assigning a drive letter to the second drive, one can assign it a mount point folder within the first drive's directory tree. That fixed the issue for me.

Update 2016-08-28: Desite being marked as "Answer", the workaround I described in this post is far from ideal. For example, drives mounted within other directories will be excluded from the Windows File History, which is a big drawback IMO. Instead, see my post below for a proper fix for this issue.

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Question Info

Last updated May 6, 2021 Views 5,687 Applies to: