ESXi 6.5: I have lost my .vmdk and have only the -flat.vmdk

I have lost my Windows.vmdk file and have only the "main" bulky Windows-flat.vmdk left in the file-system.

Since the backup failed (boy oh boy!) how can I recreate the Windows.vmdk?

I have a "similar" Windows Machine running on a brother ESXi host but with smaller allocated storage that looks like this:

# Disk DescriptorFile

version=1

encoding="UTF-8"

CID=845a9e96

parentCID=ffffffff

isNativeSnapshot="no"

createType="vmfs"

 

# Extent description

RW 104857600 VMFS "Windows-flat.vmdk"

 

# The Disk Data Base

#DDB

 

ddb.adapterType = "lsilogic"

ddb.geometry.cylinders = "6527"

ddb.geometry.heads = "255"

ddb.geometry.sectors = "63"

ddb.longContentID = "e747ecae6b26a5bbbafe6fdc845a9e96"

ddb.toolsInstallType = "1"

ddb.toolsVersion = "10346"

ddb.uuid = "60 00 C2 9a 64 ad bd 18-a6 c7 44 52 04 7d ab 07"

ddb.virtualHWVersion = "8"

I have tried to copy and paste into the missing VM. It loads the disk up in the config but the reported size is 50Gb instead of 100GB so I didn't power up yet.

Is this something I can still fix or did I lose the VM for good :-( ?