Migration to Windows 11: What your company needs to know

Support for Windows 10 ended in September 2025. If your company has not yet switched to Windows 11, you are using an operating system without security updates. This is a risk that no company can afford. In this article, you will learn what the transition entails and how to manage it without downtime.

Why migration is inevitable

The end of support for Windows 10 means that Microsoft no longer releases security updates. Any new vulnerability that emerges will remain unpatched. For companies handling customer personal data or sensitive business information, this represents an unacceptable risk. On top of that, some software suppliers are gradually ending support for Windows 10.

Hardware requirements for Windows 11

Windows 11 has significantly stricter hardware requirements than its predecessor. The key ones are:

Processor: A minimum dual-core 64-bit processor with a clock speed of 1 GHz. In practice, this means Intel 8th generation and newer or AMD Ryzen 2000 series and newer processors.
RAM: Minimum 4 GB; for comfortable operation we recommend 8 GB or more.
Repository: Minimum 64 GB, SSD drive recommended for system speed.
TPM 2.0: Security chip that must be present and activated. Most computers from 2018 onwards have one, but it may be disabled in the BIOS.
Secure Boot: It must be supported and enabled.
Graphics card: Compatible with DirectX 12 and WDDM 2.0 controller.

How to determine which air conditioners in your company are compliant

The first step is an audit of the existing hardware. Microsoft offers the PC Health Check tool, which verifies compatibility for each computer. For companies with dozens of computers, it is more efficient to use centralised tools such as Microsoft Endpoint Manager or simpler scripts that the IT administrator can run on all workstations simultaneously.

Based on the audit, a clear overview will be produced: which computers can be upgraded directly, for which it is sufficient to activate TPM in the BIOS, and which must be replaced with new ones.

Software compatibility

Most modern applications run on Windows 11 without issues. Be aware of:

Specialised industry software, modern systems, ERP, CRM. Verify with the supplier that they support Windows 11.
Old controllers, printers, scanners, special equipment. Some manufacturers no longer issue new controllers for older models.
Own application Custom-designed indoor units may require adjustments.
VPN and security software: check compatibility with Windows 11.

How to plan migration step by step

Phase 1: Audit and planning (2-4 weeks)

Map all computers, software and peripherals. Identify incompatible devices and prepare a budget for hardware replacement. Decide on the schedule.

Phase 2: Pilot deployment (1-2 weeks)

Select 2-3 users from different departments and perform the migration on their computers. Monitor whether everything works correctly and gather feedback. This step will save you many problems during the mass deployment.

Phase 3: Mass deployment (gradual)

Migrate by departments or groups, not all computers at once. Deploy each group outside of core working hours, ideally in the evening or on weekends. Always perform a complete data backup before migration.

Phase 4: Stabilisation and Support (2-4 weeks)

After migration, expect an increased number of user inquiries. Ensure adequate support is available and prepare concise guides for the most common changes in the Windows 11 environment.

Most common mistakes during migration

Underestimating the time required Migrating 20 computers is not a one-afternoon job.
Missing deposit: before every migration you must have a verified data backup.
Ignoring users: inform employees in advance about what will happen and why.
All at once: gradual migration minimises the risk of a total system failure.

How much will it cost

The Windows 11 Pro licence itself costs around 5 000 Kč; an upgrade from Windows 10 Pro may be free. The main expenses arise from replacing incompatible hardware. A new business laptop in a good configuration comes to 15 000-25 000 Kč, with a desktop computer costing similarly. Add the time required for data migration and setup.

It is also important to factor in the "cost of doing nothing": an old computer without support is a ticking time bomb, and the costs of resolving a security incident are incomparably higher than investing in a timely upgrade.

Summary

Migration to Windows 11 is not just a technical matter. It is a strategic decision regarding the security and future of your company. With a good plan and the right IT partner, you can manage the transition smoothly and without downtime.