Safing Portmaster
Safing Portmaster: Monitor and control all network activity
Privacy and Security Tools for Windows
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Hardened If you will trade some convenience
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The most private move on Windows is to leave it, but that is not always an option for work, software, or hardware. If you are staying, these tools claw back what you can: blocking telemetry, controlling which apps reach the network, and switching off the data collection Microsoft leaves on. They make Windows meaningfully quieter.
What these tools actually do
Windows sends a steady stream of telemetry that you cannot fully switch off through settings alone. These tools fill the gap: telemetry blockers flip the dozens of hidden switches Microsoft does not expose, and application firewalls let you see and control exactly which programs are allowed to connect to the internet. Together they cut the background chatter substantially.
What to look for
Open-source code (a privacy tool that itself phones home defeats the purpose), transparency about exactly what it changes, and the ability to undo those changes if something breaks. An application firewall that shows you outbound connections is especially revealing about what your installed software is really doing.
The honest ceiling
Even hardened, Windows collects more than a privacy-first system does, because the telemetry is built into the OS. These tools raise the floor a lot, but if privacy is your priority, a Linux operating system removes the problem at the source. Use these to make Windows livable in the meantime.
Frequently asked
- Can I fully stop Windows telemetry?
- No, not entirely. The telemetry is woven into the operating system, so these tools reduce it substantially rather than eliminate it. They flip dozens of hidden switches and block known endpoints, which gets you most of the way.
- Are these tools safe to run?
- Prefer the open-source, reversible ones, which is what this list favours. A privacy tool that itself phones home or that you cannot undo defeats the purpose, so transparency and an off switch matter.
- Should I just switch to Linux?
- If privacy is the priority, yes, a privacy-respecting operating system removes the problem at the source. These tools are for when you cannot leave Windows yet because of specific software or hardware.