Moving a Recovery Partition on a Hyper-V VM

jezi 40 Reputation points
2024-04-29T15:52:20.2633333+00:00

Hello,

I need to move a recovery partition on a Hyper-V VM running Windows Server 2019 in order to increase disk space on the C drive. Are there any partition tools or tricks that can help accomplish this?

Thank you.

System Center Virtual Machine Manager
Windows Server
Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
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Hyper-V
Hyper-V
A Windows technology providing a hypervisor-based virtualization solution enabling customers to consolidate workloads onto a single server.
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  1. Ian Xue (Shanghai Wicresoft Co., Ltd.) 31,171 Reputation points Microsoft Vendor
    2024-05-02T07:51:03.6466667+00:00

    Hi jezi,

    Thanks for your post. Based on my research, from the official document, it is not recommended to delete the Windows Recovery Partition as the WinRE partition enables you for different to access different options including uninstalling Updates pre-boot that prevent a system startup. This doesn't happen very often but it can happen. This feature has been added to WinRE starting with Windows Server 2022, and Windows 10 22H2 / Windows 11 22H2, or newer. It is quite unknown, though.

    Mind that if you change / delete WinRE partitions you need to inform Windows about it via reagentc.exe These are tools you have at hands:

    • Windows Diskpart
    • Settings App > Storage Settings > Advanced Storage Settings > Disks and Volumes Windows 10 22H2 / Windows 11 22H2 / Windows Server 2022 or newer.
    • diskmgr.mmc all legacy OS Windows Key + X > Disk Management 
    • Trusted 3rd party tool for Home Use (Windows 10 / 11) or paid for Windows Server use: AOMEI Partition Assistant Minitools Partition Wizard (Free)

    Formerly recommended Minitools Partition Wizard but they now have a paywall. If you are ok I would still recommend it. These can do everything!Acronis Partition Wizard isn't nice too old code and slow. Not optimized for SSD / NVMe. Both recommendable tools are available through winget. 

    Reference: Guidance for Windows Recovery partition (WinRE) patching and why you would need it - Microsoft Community Hub

    Best Regards,

    Ian Xue


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