For Windows XP:
From the Start menu, select Control Panels > Add/Remove Programs > Backblaze. Click Uninstall. Backblaze will be completely removed from your system.
For Windows Vista, Windows 7, and 8:
From the Start menu, select Control Panel > Programs and Features > Backblaze. Click Uninstall/Change. Backblaze will be completely removed from your system.
For Windows 10:
Right-click the Start Menu and select Apps and Features
Then scroll down to view the Apps currently on the computer.
Click Backblaze in that view to access the Uninstall option, then click that as well.
Download the Mac installer and run the bundled Uninstaller to remove Backblaze.