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Vritual Windows Server 2025 for DHCP Server

Fernando Gaudenzi 20 Reputation points
2026-04-16T22:45:23.3+00:00

Hello! We will install some DHCP Server on Windows 2025 in VMWARE.

The server will only use DHCP Feature.

I think, depend on the Clients Leases the Hardware requirement could vary.

So... what is the best recommendation for hardware?

Clients:

Number of VCPU:

RAM Memory in GB:

Drive D Space:

Windows for business | Windows Server | Devices and deployment | Set up, install, or upgrade
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  1. HLBui 5,780 Reputation points Independent Advisor
    2026-04-16T23:29:59.87+00:00

    Hi Fernando Gaudenzi

    I think for a DHCP-only role on Windows Server 2025 running inside VMware, you don’t need to go heavy on hardware DHCP is pretty lightweight compared to something like SQL or Exchange. The main factor is how many clients you expect to serve, since leases are just small database entries. For most small-to-medium environments, 2 vCPUs are more than enough, and even 1 vCPU can handle it if you’re only serving a few hundred clients. RAM-wise, 4 GB is a safe baseline, though you could get away with 2 GB if you’re really tight but I’d recommend 4 GB just to keep things smooth. Disk space requirements are minimal; DHCP doesn’t consume much, so a 40 GB virtual disk is plenty, even with OS overhead. If you’re planning for thousands of clients, you might bump vCPUs to 4 and RAM to 8 GB, but that’s more for peace of mind than necessity. Also, keep in mind VMware overhead and Windows updates, so don’t undersize too aggressively.

    In short: DHCP isn’t resource-hungry, so keep it simple and stable rather than overbuilding.

    If this guidance proves helpful, feel free to click “Accept Answer” so we know we’re heading in the right direction and let me know if you need any assistance. Thank you!

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  1. Q&A Assist
    2026-04-16T22:45:34.39+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    For a dedicated DHCP Server on Windows Server 2025 running as a VM, start from the official minimums for Windows Server and scale up only if lease volume and logging become heavy.

    For a small to medium environment (hundreds to a few thousand clients):

    Number of vCPU

    • 2 vCPUs
    • DHCP is lightweight; 2 vCPUs are typically sufficient unless also running DNS or other roles.

    RAM Memory in GB

    • 4 GB RAM
    • This exceeds the 2 GB minimum for Windows Server and is generally enough for DHCP plus OS overhead.

    Drive D Space (data/logs volume)

    • 40–60 GB for DHCP database, logs, and some growth
    • System (C:) must meet Windows Server minimum: at least 32 GB for the system partition.

    If expecting very large numbers of clients or very verbose audit logging, increase RAM to 8 GB and add more disk space for logs.

    DHCP itself is not resource-intensive; the main requirement is that the VM meets Windows Server 2025 minimum hardware requirements (CPU, RAM, storage, and 1 Gbps network adapter) and has reliable disk space for the DHCP database and audit logs.

    References:

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