Error:

User installations are disabled via policy on the machine

Snapshot:

Workaround 1:

1. Start Local Group Policy Editor –  gpedit.msc [in command prompt]
2. In the Group Policy Editor select Computer Configuration > Administrative Templates > Windows Components > Windows Installer
3. In the Extended Properties pane, double-click Prohibit User Installs
4. Click Disabled (to enable installations) or Enabled (to disable installations)
5. Click OK and close the Group Policy Editor
6. Open command prompt as run as admin, type gpupdate /force command and press enter[wait till you get message as User Policy update has completed successfully] message.

Workaround 2:

1. Open Windows Registry Editor.
2. Go to key HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Installer
3. Change the DisableUserInstalls value to 0 (to enable installations) or 1 (to disable installations).