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I have serious problems sharing any folder on my office PC with Windows 10 because:

  • I don't have Share with... / Share items in folder's context menu,
  • the Sharing tab is missing in folder's properties,
  • clicking on Advanced sharing... in Share with group in Share tab of This PC / File Explorer ribbon opens folder's properties dialog window with General tab displayed and (again) no sign of Sharing tab (I have Use Sharing Wizard (Recommended) option disabled in folders options.

Additional (weird?) observation. It seems that there is some icon missing from Share tab:

enter image description here

(though this could be irrelevant)

Things done so far:

  • verified that ICS service is up and running (is it relevant at all -- it was turned off and set to manual start; I changed it to running + autostart and restarted computer; no effect),
  • (standard solution) verified that all registry keys are in places (see below),
  • computer was restarted several times.

As for point 2., I have REG_SZ key of {f81e9010-6ea4-11ce-a7ff-00aa003ca9f6} value in:

  • HKEY_CLASSES_ROOT\Directory\shellex\PropertySheetHandlers\Sharing,
  • HKEY_CLASSES_ROOT\Drive\shellex\ContextMenuHandlers\Sharing,
  • HKEY_CLASSES_ROOT\Drive\shellex\PropertySheetHandlers\Sharing,
  • HKEY_CLASSES_ROOT\LibraryFolder\background\shellex\ContextMenuHandlers\Sharing,
  • HKEY_CLASSES_ROOT\UserLibraryFolder\shellex\ContextMenuHandlers\Sharing

and in a few more places.

The overall Windows 10 and network is configured correctly and working fine. I am able to share a folder, by turning back to "easy" mode (i.e. enabling Use Sharing Wizard (Recommended) option in folders options and using sharing wizard). And I can later access shared folder from other computer in my network. So the problem is with missing Sharing tab and context menu options.

Is there any other reason (except for ICS service not running and missing registry entry) for Sharing tab not appearing in folder's properties dialog?

The biggest suspect: Recently I've been digging in Windows registry to clean up my totally messed up files' and folders' context menu. I might remove too much, but I am unable to figure out what was that "too much" since all basic entries (according to basic solution) are in place.

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    Check if under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Shell Extensions\Blocked you have an item named {f81e9010-6ea4-11ce-a7ff-00aa003ca9f6}. If it exists, delete it and reboot.
    – harrymc
    Oct 28, 2018 at 21:43
  • @harrymc Bingo! That did it. I think it got added to that list because I was being a tad aggressive with WinAero Tweaker and NirSoft's shell tools while I was disabling/removing other annoying third-party shell-extensions.
    – Dai
    Oct 30, 2020 at 19:35
  • @Dai: Thank you for confirming my comment, so I added it as an answer.
    – harrymc
    Oct 30, 2020 at 20:12

1 Answer 1

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Check if under the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Shell Extensions\Blocked you have an item named {f81e9010-6ea4-11ce-a7ff-00aa003ca9f6}.

If it exists, delete it and reboot.

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