# crazy-max/WindowsSpyBlocker

Block spying and tracking on Windows

Repository: https://github.com/crazy-max/WindowsSpyBlocker
Canonical: https://ross.abutalabs.com/products/windowsspyblocker
Homepage: https://crazymax.dev/WindowsSpyBlocker/
Language: Go
License: MIT
License Family: permissive
Topics: windows, spy, blocker, dnscrypt, proxifier, wireshark, qemu, sysmon, openwrt, firewall, ncsi, hostsfile, telemetry
Last push: 2026-08-25T02:22:30+00:00

## Health v2 (maintenance only)
Score: 67/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 99, release rhythm 8, longevity 100
- inputs: {"age_days": 3834, "days_push": 9, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 5168, forks 390 (observed 2026-08-28T04:09:11.583246+00:00)

## What it is
WindowsSpyBlocker is a Go application delivered as a single Windows executable that blocks spying and tracking on Windows systems. It captures and interprets network traffic to generate hosts and firewall rules that block Microsoft telemetry endpoints.

## Use cases
- block windows telemetry and tracking
- stop windows 10 from sending data to microsoft
- generate hosts file rules to block spy domains
- create firewall rules blocking microsoft telemetry ips
- disable ncsi connectivity checks
- harden windows privacy on enterprise machines

## When to choose
- you want a maintained, single-executable tool to block Windows telemetry
- you need curated hosts/IP/firewall rule lists consumable by pi-hole, OpenWrt, OPNsense, or DNSCrypt
- you want traffic-analysis-derived blocking rules rather than manually curated lists

## When to avoid
- you need to block telemetry on macOS or Linux hosts
- you require a GUI-based privacy tweaker for Windows settings
- blocking Windows Update or NCSI endpoints would break your update or connectivity workflows

## Facets
- artifact type: application
- maturity: maintenance
- function: security, privacy, networking, cli
- domain: security, privacy, windows, networking, developer-tools
- platform: windows, cli
- tags: telemetry-blocking, hosts-file, firewall-rules, windows-privacy, tracking-blocker, single-executable

## Member repositories
- crazy-max/WindowsSpyBlocker (main) score 67

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:11.583246+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:01:52.101273+00:00, confidence not recorded.
  - readme: https://github.com/crazy-max/WindowsSpyBlocker (fetched 2026-08-28T04:09:11.583246+00:00, sha 49811f593402)
  - homepage: https://crazymax.dev/WindowsSpyBlocker/ (fetched 2026-08-29T08:55:54.417686+00:00, sha f04e1440e212)
  - site_page: https://crazymax.dev/WindowsSpyBlocker/faq (fetched 2026-08-29T08:55:54.420113+00:00, sha b61730645493)
  - site_page: https://crazymax.dev/WindowsSpyBlocker/changelog (fetched 2026-08-29T08:55:54.422118+00:00, sha 1b86b2c3812c)
- Data as of 2026-08-30T08:39:29.467469+00:00.