Cybersecurity and privacy--removing Windows Media Player Legacy from network, deleting its library

Tech Log Entry — Regarding Windows Media Player Legacy (WMPL) - The Task of Enhancing Privacy & Conducting Cleanup 

Category: Cybersecurity / Privacy / Windows 11

Initial Issue

  • Desktop was visible as a Media Device on the home network
  • WMPL had automatically indexed personal photos, videos, and other media files without user knowledge or intentional setup
  • Files were potentially discoverable by other devices on the shared home WiFi, including DirecTV equipment

Discovery

  • Found desktop system listed under Network → Media Devices in File Explorer
  • Clicking the DirecTV2PC Media Server entry launched WMPL and revealed personal files in its library
  • Confirmed WMPL had auto-populated its library from watched folders without user action

Investigation Steps

  • Checked WMPL Stream menu — media streaming was already off in WMPL itself
  • Identified the real issue: OS-level network sharing services were broadcasting the device
  • Located WMPL's database files at: C:\Users\[username]\AppData\Local\Microsoft\Media Player

Fix Applied

  • Set Windows network profile to Public
  • Turned off Network Discovery and File/Printer Sharing in Advanced Sharing Settings
  • Disabled two Windows services via services.msc: Windows Media Player Network Sharing Service and Function Discovery Resource Publication
  • Removed all watched folder locations from WMPL library (Music, Videos, Pictures, Recorded TV)
  • Unchecked all auto-indexing settings in WMPL Options → Library tab
  • Deleted all .wmdb database files and cleared all subfolders in the Media Player AppData directory

Final Resolution

  • WMPL library is empty with no records of personal files
  • Desktop is no longer broadcasting as a Media Device on the network
  • WMPL has no watched folders and no auto-indexing enabled

Future and Ongoing Concerns:

Windows Updates may re-enable disabled services — periodically check services.msc to confirm WMP Network Sharing Service and Function Discovery Resource Publication remain Disabled

  • If WMPL is ever reopened, decline any prompt to scan for or add media
  • If desktop system reappears as a Media Device on the network, recheck the two services above first
  • Put monthly calendar entry with this Future and Ongoing Concerns text to give periodic reminder to look for this issue.

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