Two versions of Atlassian Companion showing installed, uninstalls failed

[Brandon Purnell]

Presently my system has two versions of the Atlassian Companion application installed. One appears to have been an MSI install (this one seems to have uninstalled but left remnants behind/unclean uninstall) and the standard EXE. 

Is there a clean way to completely remove all of Atlassian Companion and its residual files?

[Alex K · Accepted solution]

Hi @Brandon Purnell ,

The MSI by default installs to:

 Program Files (x86)/Atlassian Companion

The EXE installs to: 

%LOCALAPPDATA%/atlassian-desktop-companion

Both MSI and EXE store temporary data in:

%APPDATA%/Atlassian Companion

and the edited files in:

C:\Users\<UserName>\.atlassian-companion

Companion also creates the following registry entries:

Computer\HKEY_CLASSES_ROOT\atlassian-companion
Computer\HKEY_CURRENT_USER\Software\Classes\atlassian-companion
Computer\HKEY_CURRENT_USER\Software\Microsoft\atlassian-desktop-companion

 You can do a registry search for "atlassian" to locate them. However please note that these are used for both the MSI and EXE.