Windows 11 Home to Pro Upgrade Key

The Windows 11 Home to Pro upgrade key moves a computer running the Home edition up to Windows 11 Pro without formatting and without touching your files or programs. The key is delivered digitally to your email and must be used within 1 day of delivery; once completed, the upgrade is permanent for life on that computer. Important: this is an upgrade key — it raises the edition to Pro but does not license Windows. You will also need a Windows 11 Pro licence for activation. Not sure whether Pro is worth it for you? See our guide on the key differences between Windows 11 Pro and Home.

What Is an In-Place Home to Pro Upgrade?

Windows supports in-place edition upgrades: when a valid upgrade key is entered on a system running Home, the operating system downloads the Pro components, completes the switch with a few restarts, and leaves all of your files, applications and settings untouched. There is no clean install, no reinstalling your programs and no data migration. This product is exactly that key — a Windows 11 Home → Windows 11 Pro upgrade key.

What This Key Does — and Does Not Do

✔ Does	✘ Does not
Upgrades the Home edition to Pro without formatting	Activate or license Windows
Keeps your files, apps and settings in place	Convert your Home licence into a Pro licence
Unlocks Pro features such as BitLocker and Remote Desktop	Move you between Windows versions (10 ↔ 11)
Provides a permanent, lifetime upgrade on one computer	Work on more than one computer

To activate the system after the upgrade you will need a Windows 11 Pro licence key. Our options: the most economical route is the Windows 11 Pro MAK licence, the Windows 11 Pro OEM licence binds permanently to your motherboard, and the Windows 11 Pro Retail licence can be transferred between computers. Order the upgrade key and a Pro licence together to complete the whole switch in one go.

Features You Gain with Windows 11 Pro

• BitLocker device encryption: encrypts your drive end to end so your data stays safe even if the device is lost.
• Remote Desktop (RDP) host: connect to your computer securely from other devices.
• Hyper-V virtualisation: build virtual machines and test environments on Windows.
• Group Policy and domain support: join corporate networks with central management.
• Windows Update for Business: defer and control updates on your own schedule.

How Is the Upgrade Done?

1. After your order, the upgrade key is sent to your email (usually within 1–90 minutes). The key must be used within 1 day of delivery.
2. On your computer, open Settings → System → Activation and click "Change product key".
3. Enter the upgrade key. Windows downloads the Pro components and completes the switch with a few restarts (usually 15–30 minutes). No format — your files stay in place.
4. Once the upgrade finishes, enter your Windows 11 Pro licence key on the same screen to activate the system.

For an illustrated step-by-step walkthrough, see our Instructions for Use Library, or add VIP Setup Support to your cart and let our team handle the whole process.

Why Karınca Lisans?

Karınca Lisans is a digital licensing platform based in Türkiye serving thousands of individual and business customers. All of our Windows 11 licences are sourced through official channels, every sale is invoiced, and keys can be verified on Microsoft activation servers. We state plainly what each product is and is not: the key on this page is an upgrade key and does not activate Windows — no surprises. Faulty keys are covered by the refund guarantee stated on the product page.