One of our virtual machines is running low on space on Drive C. I want to extend the volume, but a Windows Recovery partition is positioned after it. The disk is configured as a Dynamic Disk, and I haven't been able to remove the recovery partition through the usual tools. What is the safest way to delete the recovery partition and extend Drive C?
3 Answers
For a server VM, the recovery partition usually isn’t essential if you have reliable backups or other recovery media. Disable WinRE before deleting it, double-check the disk and partition numbers, and then extend the volume once the unallocated space is adjacent to Drive C.
Take a snapshot or backup first. Check whether Windows Recovery Environment is using the partition with `reagentc /info`. If it is enabled, disable it with `reagentc /disable`, then use an elevated DiskPart session to identify and remove the correct partition: `list disk`, `select disk `, `list partition`, `select partition `, and `delete partition override`. Afterward, extend Drive C using Disk Management or DiskPart.
Dynamic disks generally don’t prevent this by themselves. The important part is selecting the correct recovery partition and using `delete partition override` when the normal delete option is unavailable. Don’t skip the backup or snapshot, since deleting the wrong partition could make the VM unbootable.
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