Missing hdd space after cancelled volume shrink in Windows

Hello,

I cancelled the volume shrink operation while it was in progress. Now I cannot find my other 300+ GB or disk space. When I go to my computer it says I have only 299GB out of 600GB. How do I reclaim my lost disk space?

The first pic lists my drives and partitions.
The second pic lists the available disk space. As shown the total space of the drive is approx 600GB but there is only 299GB available.

Show Partition Wizard screenshot as well please.

Try to resize the disk in partition wizard. Make it smaller and apply. Reboot. Make it larger, reboot.
Post screenshot agian afterwards.
Seagate disk?

You just made the partition smaller and larger afterwards?
Post screenshot of Partition Wizard as it is now please.

jinzu said:

Yes here is the screenshot. Should there be 10.34 MB unused?

It's only 10MB!!
But you can extend using disk management or Partition Wizard. Works?

I don't know why this happens, but saw it once a long time ago on a seagate disk.