I have four shared folders from the same Windows 10 Home machine, all the same permissions. Each shared folder is a separate drive volume (custom letters, I:, M:, R:, V:). I am able to successfully set them up as network drives on two other Windows 10 Home machines, but when I go to add subfolders from the network drives to libraries, I am only able to add folders from one of the drives (V:). Any attempts to add subfolders from the other three network drives is met with an error message saying that "This network location can't be included because it is not indexed". I have checked the network drive properties and verified the "Allow files on this drive to have contents indexed in addition to file properties" box is checked for all four. When I go to Indexing Options in Control Panel, none of the network drives are listed.
I have tried workarounds such as sharing just the subfolders in lieu of the root volume and sharing a symbolic linked folder from a working volume (in this case I tried sharing from C:, which also works when sharing to libraries). Neither method worked.
I also found recommendations online for running the sfc /scannow command but that also did not affect my ability to add the network drives.
***moved from Windows / Windows 10 / Files, folders, and storage***