[miker]

Trying to run the installer I get an NSIS error - "Installer integrity check has failed"

I've downloaded it twice, but it's complicated by the fact that Symantec also keeps flagging it as dodgy!!

Has anyone else encountered this?

[hwh]

You're the first person I've seen with a problem.  If your antivirus software is tampering with the installer it will fail it's own checks.

As long as you're downloading from the official site, https://librepilot.atlassian.net/wiki/display/LPDOC/Downloads you may have to turn off the defective antivirus before downloading and installing.  You could also open a support request with Symantic and complain about the false positive.

I just downloaded the windows installer and submitted it to the online virustotal.com scanner and only one of 57 virus scanners got a positive, an obscure one I've never heard of.  That's not unusual for an installer, none of the virus checkers actually look for virus, they look for things that virus do, the same things installers do.
https://www.virustotal.com/en/file/7eb46c4df814c6cb1fad2dcfe89e499640a0c2e4c33565afc6be14daae39e885/analysis/

It's up to you what you do.

[f5soh]

You can also check if your download is correct.

Looking at file properties, whats the size of installer ?

[miker]

Yeah, the fact that Symantec was truncating it 30MB early was something I should have noticed. Turned off Symantec and it works fine. Thanks for the tips.