Removing Dropbox Context Menu Entries on Windows - Persistent Fix

I've seen dozens of threads here from people trying to get rid of the Dropbox right-click context menu entries on Windows. There is no official toggle for this. The common advice involves manually editing registry keys, but people report those changes revert after Dropbox updates. Here is my solution:

The linked script solves that differently. Instead of modifying Dropbox's own registry entries (which Dropbox overwrites on update), it uses Windows' built-in Shell Extensions Blocked mechanism — a per-user registry key (`HKCU:\...\Shell Extensions\Blocked`) that Windows itself respects. Dropbox updates don't touch this key because it's not theirs.

What it does:

• Reads Dropbox's AppxManifest to find all context menu CLSIDs automatically
• Blocks them using Windows' own sanctioned blocking method
• Fully reversible — unblock everything with one click
• Interactive menu or silent command-line mode for automation

Tested for 2+ months across three machines via PowerShell 7, through multiple Dropbox updates. The entries have never come back.

The script is open, readable, and modifies nothing outside that single user-scoped registry key. If you want an independent safety assessment, paste it into any AI assistant and ask.

Here is the script + AI safety assessment:

https://grok.com/share/bGVnYWN5_e1f2cac5-5e0f-4731-bbbe-63fd72af7a7b