Resolution too low on boot from usb drive

Hi there,
I have a problem with booting from a Paragon Recovery-Media USB.
When I use this media on my laptop there is no problem, but when I boot on my PC the resolution is way too low, so I can’t rech certain screen-buttons to perform actions.
I have a Geforce GTX 650 video-card. I followed Paragon suggestions to adapt registry in order to force high resolution.
The following keys are in the registry:

  • HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers"x:\programs\Paragon Software\program\hdm17.exe" HIGHDPIAWARE
    -HKEY_CURRENT_USER\Control Panel\Desktop"DpiScalingVer" 3fa (1018)
    -HKEY_CURRENT_USER\Control Panel\Desktop"LogPixels" 60 (96)
    -HKEY_CURRENT_USER\Control Panel\Desktop"Win8DpiScaling" 1(1)
    This problem causes that I can’t restore a system-backup.
    Please help!