# Ubuntu – Unallocated space for Ubuntu shown as “unusable” rather than free space

dual-bootgpartedpartitioningsystem-installationuefi

My motherboard is of Asus. I have Windows 7 installed already and I created 20 GB of unallocated space for the installation of Ubuntu in the C:/ drive.

According to the online tutorials, that space should be free space, but during the installation process that 20 GB is shown as unusable (see the next screenshot).

Proceeding further I also get the following warning: