You can find the file etsafebit-install.exe from the link above. It's a good experience to check the file for malware. So, use your antivirus program or try a free one – Panda Free Antivirus.
Download the 2.7 MB and start the installation by double-clicking on the file and following the steps of the setup process.
If you want to uninstall east-tec SafeBit, follow the steps: go to the Settings section, find the needed program, and remove by pressing on the Uninstall button.