How do I completely delete a software?

[Windows Central Question]

How to Delete Completely A software

Hi
I have Lumia 620 . in my device VIBER is not available but when i want to download and install it , i can not . because the status of this application in my device is installed .
Can any one help me ?

 

[RumoredNow]

Re: How to Delete Completely A software

Uninstall Viber > reboot > sync Microsoft Account