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If your browser or Windows blocks the installer

Some players see Chrome report “Virus detected”, or Windows Defender name something like Trojan:Win32/Wacatac.B!ml, when they download our installer. We know about it, and it is a false alarm.

The !ml at the end of that name means Defender’s machine-learning model guessed, rather than matching anything it actually knows to be harmful. It guesses wrongly here because our installer has the shape it distrusts most: a small program, not yet code-signed, that downloads a large file from the internet and sets up a game. We have reported the false alarm to Microsoft for review. We also publish the SHA-256 of every build below, so you never have to take our word for it.

If your browser offers to keep the file

1. Open your downloads list with Ctrl + J.
2. Find AngelsOnline-Nostalgia-Setup.exe and click the arrow or … beside it.
3. Choose Keep in Chrome, or Keep anyway in Edge.

If “Windows protected your PC” appears when you open it

1. Click More info in the blue window.
2. Click Run anyway.

If Windows deleted the file instead

Then your antivirus removed it before you got a choice, and there is nothing to click through. Ask us on Discord — the link is at the bottom of this page — and we will get you a working copy while Microsoft’s review is pending.

Only ever run a copy you downloaded from aonostalgia.com, and check it against the SHA-256 below if you are unsure. We will never ask you to switch your antivirus off or add an exclusion folder — anyone telling you to do that for this game is not us.

Verify your download

You can check the downloaded installer with this SHA-256. In PowerShell:

Checksum file: SHA256SUMS.txt

Connection details

• Server name: Nostalgia
• Address: 77.237.239.213 · port 16768
• Client version: 8.7.6.22 (Nostalgia)

The client is already configured for this server — just type your own account ID and password.