I had to increase the space allocated to a customer's WSUS server VM that had run out of capacity and was keeling over. So I powered off the VM, added the extra capacity to the virtual hard disk, powered it back on, and went into Disk Management to extend the C: drive partition. However, I discovered that because the Windows Recovery Partition was in between the C: partition and the new unallocated space (similar to the image below which I've copied from Woshub.com ), I was unable to do an "Extend Volume" job. The solution was to move the recovery partition. This involves disabling it, deleting it, extending your partition as required, and then re-creating the recovery partition and enabling it. Here are the steps involved: Disable existing recovery partition: You will need to disable the existing Windows recovery partition. To do this, run this command from an admin command line/PowerShell: reagentc /disable If you get the error message "REAGENTC.EXE: Operati...
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