Best Server Software AI pick
Chosen by an AI model from its trained knowledge, with its reasoning.
AI pick: Microsoft Windows Server 2025 Standard
It is the current Windows Server release, and its Standard edition covers physical or lightly virtualized servers with rights to two virtual instances.
Not for: Small offices that fit Essentials limits, and hosts running many VMs, which need Datacenter.
AI picks by need
For small business, no CALs
Microsoft Windows Server 2025 Essentials
It is licensed without CALs for small user counts on a single small server.
Not for: Businesses expecting to outgrow its user, device or core limits.
For heavy virtualization
Microsoft Windows Server 2025 Datacenter
It allows unlimited Windows Server virtual instances on licensed cores.
Not for: Servers running only one or two VMs.
For free Linux server
Canonical Ubuntu Server LTS (line)
It is a free long-term-support Linux server OS with optional paid support.
Not for: Shops that depend on Active Directory domain controllers or Windows-only server apps.
What the AI looks for in Server Software
- Core licensing minimums
- Standard and Datacenter are licensed per core: every physical core must be licensed, with a minimum of 8 cores per processor and 16 per server. Base packs often cover only the minimum, so larger servers need extra core packs.
- Virtualization rights
- Standard covers two Windows Server VMs per fully licensed server. Datacenter covers unlimited VMs. VM count is the main factor in choosing between the two editions.
- CALs
- Standard and Datacenter need a CAL for each user or device that accesses them. Essentials does not. CALs are a large hidden part of total cost.
- Hardware compatibility
- Check that your server vendor certifies the hardware and drivers for the Windows Server version you are buying. Unsupported hardware can mean missing drivers and no vendor support.
Brands that matter
- Microsoft: Windows Server in Essentials, Standard and Datacenter editions.
- Canonical: Ubuntu Server, free, with paid support available.
- Red Hat: Red Hat Enterprise Linux, subscription-based enterprise Linux.
What to avoid
- Product keys from unknown sellers that come without licensing proof
- Buying only the base core pack for a server that has more than 16 cores
Questions
Standard or Datacenter?
Choose by how many Windows Server VMs you will run. Datacenter becomes cheaper once you need many VMs on one host.