This time Windows setup correctly identified Drive 0 Unallocated Space 465.8GB with no warning messages. However, it seems to have hung after I clicked next. It's been sitting on collecting Unallocated disk or drive is one that hasn't been assigned any drive letter. To install an operating system on brand new hard drives, you will be required first to partition it because you Open Command Prompt as an administrator and type diskpart. Type list disk and press Enter. Note the disk number that represents the disk you wish to fix. Type select disk x. x should be the disk number from step 2. (e.g. select disk 1) Type clean and press Enter. This action will remove all the contents of the disk. Drag it all the way to the right or alternatively from Free space following (MiB) to Free space preceeding (MiB), click okay and then approve (also to warnings). Behold! This caused the Unallocated space to move adjacent to C. BTW, despite what was claimed, this took me 4 seconds for 10GB unallocated space. Right-click Computer > Manage > Storage > Disk Management, then right-click the graphic of the D partition and select Delete. The partition returns to Unallocated for a Primary Partition or Free Space if it's a Logical Drive within an Extended Partition. Delete the partition if it is an Extended partition. Unallocated space; System Reserved partition; The C disk. In order to merge the unallocated space into C, you need to: Boot using a partition editor boot USB (Not into Windows!) Move the System Reserved partition to the top of the disk. The unallocated space will now move to between it and C. Move C on top of the unallocated space. How to fix drive 0 unallocated space windows 10? When installing Windows 10, you may encounter the problem that Windows can't be installed on this drive (Drive 0 Unallocated Space), the possible reason is that the disk has not been partitioned. To fix this, you can try clicking the "New" option to create a partition. pc0LCXT.

what is drive 0 unallocated space