title: Request admin privileges during un-installation
body: <p>I'm writing some values to HKLM during the installation of my application.</p>
  
  <p>I'm using the PrivilegesRequired=admin flag in my installer, so during the installation, writing to the registry works fine.</p>
  
  <p>However, when I un-install my application, Inno Setup doesn't request admin privileges, so my call to RegDeleteKeyIncludingSubkeys fails.</p>
  
  <p>I would like to ask if it's possible to make it so that Inno Setup requires admin privileges at un-installation as well.</p>
  
  <p>Thank you very much.</p>
  
  <p>Edit: I've read that the uninstaller should contain this information, but for me, it doesn't. I don't even remember how I created the uninstaller...</p>