Windows will warn you. Here's what to do.
The Vectorem installer isn't signed with a certificate yet, so Windows shows a warning the first time you run it. Two clicks are enough to go on.
If nothing happens: download directly.
The steps
Your browser may ask you to confirm
Edge or Chrome sometimes say the file “isn't commonly downloaded”. Open the download's “…” menu and choose “Keep”.
Run the installer
Windows shows “Windows protected your PC”. Click “More info”.
“Run anyway”
The file name shows up, with “Publisher: Unknown publisher”. Click “Run anyway”: the Vectorem installer opens.
Choose what to install
Vectorem, Vision and the Vigie are ticked by default. It installs for your account, with no admin rights. Later updates happen from the app.
Why this warning?
Windows (SmartScreen) warns about any program that isn't signed with a publisher certificate, or that few people have downloaded yet. It isn't a virus being detected: it's a program Windows doesn't know yet. Signing the installer is planned.
Check the file
To make sure the file is the one Vectorem published, compare its SHA-256 hash. In PowerShell:
Get-FileHash "$env:USERPROFILE\Downloads\Vectorem-*-windows.exe"
The result must be exactly:
Hash shown on the download page.