How do I get Windows 10 to index mapped network drives?

I have three network drives (S:, U: and Z:) mapped to a Synology NAS. They are all online and read/write accessible.

Without installing additional software or making the files available offline, how can I get Windows 10 to add the contents to the search index (without making the files available offline) so that searching them is fast?

Things I've tried

• "Allow files on this drive to have contents indexed in addition to file properties" is already checked for all three (source).
• Indexing Options doesn't have S:, U: or Z: listed. If I select "Modify" then I can only add C:. Even if I select "Show all locations" then I'm still only shown C:.
• Deleting and rebuilding the index made no difference.
• Running the troubleshooter and selecting "Files, folders, apps or settings don't appear in results" just restarts the Windows Search app.
• Several other solutions that reference buttons, screens or options that only exist in previous versions of Windows

2 Answers

Windows does not support indexing network shares. You may still search them, but this is done in real-time without indexing, so may be quite slow.

You may enable Offline Files for a network folder by right-clicking it and selecting "Always available offline". This will basically copy the folder to your computer. To make it searchable, you will need to add "Offline Files" to Indexing Options.

None of the above options are really practical.

The correct way to do that is to store the files on Windows Server with the "Windows Search Service" role installed. The server will index its shared folders, and the Windows client can then use this index.

If you have synology with DSM 7.0 make synology index your share. After the indexing is finished, you kan search from Explorer in your Windows.