Verify the download
Compare this against the file you downloaded. In PowerShell:
Get-FileHash .\REPLAYD-0.8.66-setup.exe -Algorithm SHA256
- SHA-256
- 62975a6ded8adc66055f67a7969492b75d434436d7a7afeb68a7cb23e56984d2
- Size
- 14.8 MB (15532642 bytes)
Installing
Run the installer. It asks for administrator once, because REPLAYD installs into C:\Program Files\REPLAYD where the rest of your programs live.
Nothing REPLAYD writes goes near that folder. Your settings, game list, window position, and log all live in %APPDATA%\REPLAYD, which is what lets two people on the same machine keep separate configurations.
Updating
Download the current version and run it. It installs over what you have — same folder, same settings, no need to uninstall first.
REPLAYD does not check for updates on its own yet. When it does, checking will be something you turn on, and installing will be a separate choice on top of it.