How to Upgrade Windows 10 Home to Pro with a Product Key
A Windows 10 professional upgrade key is simply a Windows 10 Pro product key —…
A Windows 10 professional upgrade key is simply a Windows 10 Pro product key — any genuine Pro key works to upgrade your existing Home installation. You do not need a special “upgrade edition” or a reinstall. The entire process takes under 10 minutes and preserves all your files, apps, and settings.
This guide walks you through every step: what Pro features you unlock, how much the upgrade costs, where to buy a genuine key, and the exact process to upgrade without losing anything.
Key Takeaways:
- Any genuine Windows 10 Pro product key works as an upgrade key from Home to Pro. The Software City sells one for $59.99 — the cheapest legitimate option.
- The upgrade is an in-place process: no reinstall, no data loss. Enter the key in Settings, Windows downloads Pro features, and you restart once.
- Pro unlocks BitLocker encryption, Remote Desktop host, Hyper-V virtualization, Group Policy Editor, and Windows Sandbox — features absent from Home.
How Do I Upgrade Windows 10 Home to Pro with a Product Key?
Enter a Windows 10 Pro product key in your Activation settings. Windows downloads the Pro features automatically — no reinstall required.
Here is the step-by-step process:
- Open Settings > Update & Security > Activation
- You will see “Windows 10 Home” as your current edition
- Click Change product key
- Enter your 25-character Windows 10 Pro product key
- Click Next — Windows validates the key with Microsoft’s servers
- Windows downloads and installs Pro features (this takes 5–15 minutes depending on your internet speed)
- Your PC restarts once
- After restart, go to Settings > Update & Security > Activation to confirm: “Windows 10 Pro” with “Windows is activated”
That is the entire process. All your files, installed programs, desktop layout, and settings remain exactly as they were. The only change is that Pro-exclusive features are now available.
For more details on buying the key itself, see our complete guide to buying a Windows 10 license key.
How Much Does It Cost to Upgrade Windows 10 Home to Pro?
The cost depends on where you buy the product key. You do not need a special “upgrade key” — any Windows 10 Pro key works.
| Source | Price | License Type | Notes |
|---|---|---|---|
| The Software City | $59.99 | Genuine lifetime license | Verified Microsoft Partner, instant delivery |
| Microsoft Store (when available) | $99 | Retail digital | Microsoft no longer sells Windows 10 directly |
| Amazon / Newegg | $50–$100 | Varies by seller | Check seller ratings and license type |
| Grey market (G2A, Kinguin) | $5–$25 | OEM (usually) | Risk of revocation, no support |
The cheapest legitimate option is $59.99 from The Software City. This is a genuine Windows 10 Pro product key from an authorized Microsoft Partner that works for both fresh installations and Home-to-Pro upgrades.
For a broader price comparison across all channels, see our Windows 10 product key discount guide.
What Features Do I Get When I Upgrade to Windows 10 Pro?
Upgrading from Home to Pro unlocks enterprise and security features that Home does not include. Here is the full comparison:
| Feature | Windows 10 Home | Windows 10 Pro |
|---|---|---|
| BitLocker drive encryption | No (Device Encryption only) | Full BitLocker |
| Remote Desktop (host) | No (can connect to others only) | Yes — others can connect to your PC |
| Hyper-V virtualization | No | Yes |
| Windows Sandbox | No | Yes |
| Group Policy Editor (gpedit.msc) | No | Yes |
| Domain join (Active Directory) | No | Yes |
| Windows Update for Business | No | Yes — defer updates up to 365 days |
| Assigned Access (kiosk mode) | No | Yes |
| Max RAM | 128 GB | 2 TB |
Upgrade for BitLocker if you carry a laptop with sensitive data. Full-disk encryption protects everything if your device is lost or stolen.
Upgrade for Remote Desktop if you need to access your PC from another location. Windows 10 Pro lets other devices connect to your machine — Home only lets you connect outward.
Upgrade for Hyper-V if you run virtual machines for development, testing, or running Linux alongside Windows.
Upgrade for Group Policy if you need granular control over Windows Update timing, security settings, or network policies.
Can I Use an OEM Key to Upgrade from Home to Pro?
Yes. An OEM Windows 10 Pro key works for the Home-to-Pro upgrade. The process is identical: enter the key in Settings > Activation > Change product key.
However, there is an important limitation: OEM keys are tied to the original motherboard. Once you use an OEM key to upgrade to Pro, that Pro activation is bound to your current hardware. If you replace your motherboard or move to a new PC, the key will not transfer.
Retail keys (like those from The Software City) are transferable. You can deactivate on one machine and reactivate on another. For an upgrade key you plan to keep long-term, retail is the better investment.
For a detailed comparison of license types, see our Windows 10 Pro license key purchase guide.
Will I Lose My Files When Upgrading from Home to Pro?
No. The Home-to-Pro upgrade is an in-place upgrade that preserves everything:
- All personal files (documents, photos, downloads)
- All installed applications and their settings
- Desktop layout, pinned taskbar items, and Start menu
- User accounts and passwords
- Network settings and connected devices
Windows simply downloads the Pro feature set and applies it on top of your existing installation. It is not a reinstall — it is a feature unlock.
The only change you will notice (besides new features) is one restart during the process.
What About Upgrading to Windows 11 Pro Instead?
If your PC meets Windows 11 system requirements (TPM 2.0, Secure Boot, supported CPU), you have two options:
Option 1: Upgrade to Windows 10 Pro first, then to Windows 11 Pro for free – Buy a Windows 10 Pro key ($59.99) – Upgrade Home → Pro using the steps above – Then upgrade to Windows 11 Pro via Windows Update (free) – Total cost: $59.99
Option 2: Buy a Windows 11 Pro key directly – Buy a Windows 11 Pro key ($99.99) – Clean install or upgrade directly to Windows 11 Pro – Total cost: $99.99
Option 1 saves $40 but requires two upgrade steps. Option 2 is simpler but costs more. Both result in a genuine Windows 11 Pro license.
For the direct Windows 11 route, see our Windows 11 Pro upgrade key guide.
Upgrade to Pro for $59.99 — Buy a genuine Windows 10 Pro key at The Software City. Works as an upgrade key from Home to Pro. Instant delivery, authorized Microsoft Partner.
Troubleshooting: What If the Upgrade Key Does Not Work?
If you enter a Windows 10 Pro key and the upgrade fails, try these fixes:
Error: “This product key didn’t work” – Double-check every character — the key is 25 characters in groups of 5 (XXXXX-XXXXX-XXXXX-XXXXX-XXXXX) – Ensure you are entering a Windows 10 Pro key, not a Windows 11 or Office key – Make sure your internet connection is active — Windows needs to contact Microsoft’s activation servers
Error: “This key is already in use” – The key may be activated on another PC. Retail keys must be deactivated on the old device first – OEM keys that have been hardware-bound cannot be reused
Upgrade stuck or frozen
– Ensure Windows Update has installed all pending updates before attempting the upgrade
– Temporarily disable antivirus software
– Try the upgrade via Command Prompt: run changepk.exe /productkey XXXXX-XXXXX-XXXXX-XXXXX-XXXXX as administrator
If activation fails after upgrade, try phone activation: open Command Prompt as administrator, type slui 4, and follow the automated phone system.
Frequently Asked Questions
Do I need a special upgrade key to go from Windows 10 Home to Pro?
No. Any genuine Windows 10 Pro product key works as an upgrade key. There is no separate “upgrade edition.” Buy a standard Windows 10 Pro key, enter it in Settings > Activation > Change product key, and Windows upgrades automatically.
How long does the Windows 10 Home to Pro upgrade take?
The upgrade typically takes 5–15 minutes. Windows downloads the Pro feature pack, installs it, and restarts once. All your files and apps are preserved throughout the process.
Can I downgrade from Windows 10 Pro back to Home?
There is no built-in downgrade path. Going back to Home requires a clean reinstall of Windows 10 Home. However, there is rarely a reason to downgrade — Pro includes everything Home has, plus additional features.
Is it worth upgrading to Windows 10 Pro in 2026?
Yes, if you need Pro-exclusive features like BitLocker, Remote Desktop, or Hyper-V. At $59.99 from The Software City, the upgrade also provides a free path to Windows 11 Pro if your hardware qualifies — making it the cheapest way to get Windows 11 Pro.
Can I use a Windows 11 Pro key to upgrade Windows 10 Home?
No. A Windows 11 key does not activate Windows 10. You need a Windows 10 Pro key specifically. After upgrading to Windows 10 Pro, you can then upgrade to Windows 11 Pro for free through Windows Update.
What happens to my Windows 10 Home license after upgrading to Pro?
Your Home license is replaced by the Pro license. The Home key is no longer active on that device. If you used a retail Pro key, the Pro license is now tied to your hardware (or your Microsoft account if linked).
Ready to upgrade? Get a genuine Windows 10 Pro key for $59.99 at The Software City — works as an upgrade key from Home, instant delivery, authorized Microsoft Partner.
by Editorial Team
Updated on April 5, 2026
by Editorial Team
Updated on April 5, 2026
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