I have a Dell Inspiron laptop with a 1tb hardrive. It runs Windoze 10 pre-release tech issue. I boot Debian 7.7, install firmware for wifi, and the partition only sees free 1tb! I used the MiniTool Partition wizard to create a 422gb ext4 partition, that the installation CD doesn't see.
Windoze 10 required me to gdisk g back to mbr from the gpt I was running with Win 8 and Jessie.
I'm downloading Debian 7.8. Hopefully 7.8 has some fixes? Or is there a method to over just wiping-out all Win 10 to install Wheezy?