To completely remove Qlik Sense Desktop, follow these steps:
Backup all your Apps
Uninstall Qlik Sense Desktop from Control Panel / Uninstall programs
Delete the program folders located in: C:\Users\<username>\AppData\Local\Programs\Qlik\Sense C:\Users\<username>\AppData\Local\Programs\Common Files\Qlik\Custom Data
Clear the Windows registry (for advanced removal - usually unnecessary) Only carry this step out if you are comfortable with editing the Windows Registry. Qlik Support cannot assist in restoring a system damaged by the registry having been modified incorrectly.
Open regedit using an administrator account
Press F3 (to open the search window)
Search for Qlik
Delete the located registry key
Press F3 again and continue until all references to Qlik Sense are removed
Storage: C:\Users\USERNAME\Documents\Qlik (please note this also contains your Apps and Extensions folders so as mentioned take a back up of these first before removing this folder)
Manually remove the software from the Programs and Features list by following these instructions: