1. Download Maintener by going to the Download page https://devizard.com/download-maintener/
2. Open the installer
3. Click Next to proceed
4. Accept the license and click Next
5. Select destination directory and click Next
6. Click Install to start the installation procedure
7. If prompted make sure that verified publisher says Devizard OÜ and click Yes
8. After the installation you can start the Maintener!