Why companies are moving off on-premise servers
An on-premise server is a single box that has to be powered, cooled, backed up, patched, insured and eventually replaced, usually at the worst moment. Cloud services spread that risk across Microsoft's data centres, scale up or down with your headcount, and let people work from anywhere without a VPN.
That doesn't mean everything belongs in the cloud. Some apps need a server, some files are too large to sync, and some workloads are cheaper to keep. A good cloud migration starts with an honest assessment of each workload, then picks the right home for it.
Where things usually land
- Shared drives move to SharePoint and Teams, synced with OneDrive. See our file server to SharePoint guide.
- Active Directory moves to Microsoft Entra ID, with devices joined to the cloud and managed by Intune.
- Line-of-business apps run on Azure virtual machines, or move to the vendor's cloud version.
- Remote desktops become Azure Virtual Desktop or Windows 365 Cloud PCs.
- Large or app-dependent files go to Azure Files, which keeps mapped drives working.
Cost control built in
Azure bills by the hour, so a poorly sized environment gets expensive fast. We right-size virtual machines, schedule them to shut down when nobody's working, use reserved pricing where it saves money, and set budget alerts so there are no surprise invoices.