Two more procedures to follow, in this order:
1. Increase the size of the virtual disk: Change the Virtual Disk Configuration
2. Increase the size of the Windows partition (exact process will depend on the Windows version and disk type)
Did you expand the existing VMFS by adding an extent ?
I highly recommend NOT to use extents. Especially not with ESXi 6 or later !!!
If possible work around using extents - if you lose one extent the chance that you risk the data on both extents is very high.
Login in Window VM >>> Open Disk Mgmt >>> Select the Disk which you extended >>>Right Click on that disk and expand it.