If you use a shared network with neighbours and they are French speaking, the 2 websites may be associating by ip or by location. It happened to me when I got to my previous rental with shared Internet with Romanians, my phone thought I was Romanian.
If you don’t need to keep any data get 2 usb drives (or 1 using yumi):
-put the OS you want to install on one of those
-put linux ubuntu or puppy in the other
Boot into Linux, use the partition manager to 0 the current storage device, boot into the intended os usb stick