For the Free version just go to the AD FastReporter product page.
For the Pro version you will simply receive a download link via email. The setup file is digitally signed by "Albus Bit SIA" digital certificate. Setup includes x64, x86 architecture files and, based on your OS architecture, it will automatically use the most suitable version.
⚠ Warning: Uninstalling AD FastReporter will completely delete registry entries and the local database. If you have the Pro version your product key will also be deleted.
Go to Control panel --> Uninstall a program --> Search for AD FastReporter and click Uninstall.
After uninstall is complete, you will be asked if you want to fill out a survey on AD FastReporter. If You say yes, you will be redirected to a short online survey form.