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BoxSyncExt.dll: Is It Safe?

Box Drive context menu handler for enterprise cloud storage. Can slow down context menu in folders with many items.

Quick facts

How to check this file on your PC

1. Open ShellExView ( download guide) as Administrator.
2. Find BoxSyncExt.dll in the list (Ctrl+F).
3. Note the full path. Prefer Program Files for known vendors; treat Temp, Downloads, or random AppData paths as higher risk.
4. Right-click the file in Explorer → Properties → Digital Signatures (or use Sysinternals sigcheck).

Disable without uninstalling

1. In ShellExView: Options → Hide All Microsoft Extensions.
2. Select the row for BoxSyncExt.dll.
3. Press F7 (Disable Selected Items).
4. Options → Restart Explorer (or Ctrl+E).
5. Test right-click. Re-enable with F8 if something breaks.

FAQ

Is BoxSyncExt.dll a virus?

BoxSyncExt.dll is associated with Box, Inc. and is generally considered safe. Still verify the file path and digital signature on your PC.

How do I disable BoxSyncExt.dll?

Download ShellExView from NirSoft, run it as Administrator, hide Microsoft extensions, find BoxSyncExt.dll, press F7 to disable, then restart Explorer.

Who publishes BoxSyncExt.dll?

Listed company/vendor: Box, Inc.. Type: Cloud Storage.

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