I searched for a similar problem, but could not find it. Sorry if this is a duplicate question.
I have an HP Touchsmart TM2 with 4GB of memory and Windows 10 installed. I created a LiveUSB with unetbootin and Ubuntu 15.04.
Following some instruction to dual boot, I get stuck in the install process when it comes to create the root drive. The disk space shows as "unavailable".
I was able to shrink my C: Drive and create the free space. It shows up as Unallocated in the Windows disk management tool (see pic).
I then reboot into Ubuntu. From the desktop, I select the Install: 1. Connect to Wifi 2. On prepare to Install I do not check either box (download updates, install third party software). 3. On type of install I select something else.
The volumes show up but the free space shows as "unavailable". I select that space, but I cannot hit the "+" button to get to the next step.
Install Type Window
I quit the install at this point.
I then went back to windows and tried to create a simple partition of 120GB with NO disk drive letter. I hit OK and get a message asking to convert the entire drive to a "dynamic drive". Not sure I wanted to do that, so quick that. Here is the error/information message.
"The Operation you selected will convert the selected to basic disk(s) to dynamic disk(s). If you convert the disk(s) to dynamic, you will not be able to state installed operating systems from any volume on the disk(s) (except the current boot volume). Are you sure you want to continue?" YES/NO
Thanks in advance.