CVE-2019-1388 (Windows Priv Esc UAC Bypass) question 4

use the target on the desktop, just follow the instructions:

1. Right click the .exe file of the desktop and run as administrator
2. Click ‘show more details’
3. Click ‘show information about the publisher’s certificate' 
4. Click the ‘issued by’ hyperlink ---> the browser will be opened in the background
5. Click ‘OK’
6. Click ‘no’ on the UAC window
   
   now in the browser:
7. Once the page fails to load, click the cog icon in the top right
8. Select File → Save As
9. Accept the warning message by clicking ‘OK’
10. In File, name type c:\windows\system32\*.*
11. Locate cmd.exe and right-click → Open

then you should have a window open with system rights: