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The doctor’s app · Getting started

Installing Nirnoy Rx

Putting Nirnoy Rx on a Windows computer, and what it asks the first time it opens.


Nirnoy Rx installs on your own computer, so there is no website to log into. Once the file is downloaded it installs with no internet at all.

On Windows

  1. Download NirnoyRx-Setup.exe from nirnoyrx.com.
  2. Double-click it. If a blue screen says “Windows protected your PC”, there is nothing wrong. Click More info, then Run anyway.
  3. When it asks where to install, the default is right.
  4. When it finishes, the icon is on your desktop.
On the blue screen: 1. More info, 2. Run anyway
On the blue screen: 1. More info, 2. Run anyway
This installer carries no publisher signature yet, which is exactly why Windows cannot name who made it. A signing certificate is being arranged; until then the SHA-256 fingerprint below is how you check the file is ours. Always download it from nirnoyrx.com and nowhere else.

Checking the File Is Ours

Because Windows says the publisher is unknown, there should be a way to check rather than a request to trust. We publish a SHA-256 fingerprint for every installer. Open Command Prompt, run certutil -hashfile <the file name> SHA256, and if the long number it prints matches the one below exactly, the file is the one we built and not one character has changed. If a hospital IT department asks, this is what they want.

Published now: NirnoyRx-Setup-4.6.0.exe · 128 MB

SHA-256 5a10b450eada88fd94ecb78c5672b18a44fb238722577ea2c12d6c3f797bc4e8

The First Time It Opens

It asks for three things: a recovery passphrase, your name and degrees, and at least one chamber. The passphrase matters more than it looks: without it no backup can ever be opened, and that includes by us. Write it down, and keep it somewhere that is not the chamber.

This screenshot is in the customer area · Sign in to see it
The doctor and chambers screen

Locking the Screen

A line across the top asks what should unlock this computer’s screen. There are three answers and all three are legitimate: a PIN, four to eight digits, quick between patients; your recovery passphrase, so there is nothing new to remember; or nothing, on a machine nobody else touches. It can be changed later under Doctor & chambers.

With a PIN, the lock opens the moment its last digit is typed, no Enter. With the passphrase, press Enter or Unlock when you have typed it.

Forgetting the PIN does not shut you out: the recovery passphrase opens the lock too, whichever you chose.

What It Needs

ThingHow much
Windows10 or 11, 64-bit
DiskAbout 400 MB
InternetNot to install; once to check the licence

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