The parameter is incorrect (Windows Server 2008) – Disk Manager not showing correct available space.

Hi Guys,
Today I had to extend space on the LeftHand storage for old Windows 2008R2. On end I got error The parameter is incorrect”

Operating system doesn’t see correctly available space.

To solve it I used diskpart.

list volume
select Volume 3 
extend filesystem

I hope that this helps. I also hope that you don’t have Windows 2008 anymore 🙂