How to Upgrade from Windows 10 to Windows 11 Pro Using a Product Key

📅 2026-03-20 · ✍️ Softkeys Tech Team · 🏷️ How-To

The clock is ticking. On 14 October 2025, Microsoft officially ends support for Windows 10. No more security patches. No more updates. No more protection against the latest threats. For the millions of UK users and businesses still running Windows 10, the upgrade to Windows 11 is no longer optional — it is urgent.

The good news? Upgrading to Windows 11 Pro using a product key from Softkeys.uk costs just £19.99 and takes less than an hour. This guide walks you through every step, from checking compatibility to activating your new licence.

Why You Should Upgrade to Windows 11 Pro (Not Home)

When upgrading, you have a choice: Windows 11 Home or Windows 11 Pro. For the same price at Softkeys.uk (£19.99), Pro is the clear winner. Here is what you get with Pro that Home does not include:

BitLocker drive encryption: Encrypt your entire hard drive. If your laptop is stolen, your data stays protected. Essential for anyone handling sensitive information.
Remote Desktop: Connect to your PC from anywhere. Work from home, access your office machine while travelling, or provide remote support to family.
Group Policy Editor: Fine-tune Windows settings, disable telemetry, control updates, and configure security policies. Power users and businesses need this.
Hyper-V: Run virtual machines natively. Test software, run Linux alongside Windows, or create isolated environments.
Windows Sandbox: Open suspicious files or test unknown software in a disposable virtual environment that resets when you close it.
Assigned Access: Lock a PC to a single application — useful for kiosks, point-of-sale, or shared workstations.

Windows 11 Home is fine for casual personal use. But for anyone who values security, flexibility, and control — which should be every UK user in 2025 — Pro is the only sensible choice.

Step 1: Check Your PC Compatibility

Before purchasing a key, confirm your PC can run Windows 11. Microsoft's hardware requirements are:

Processor: 1 GHz or faster, 2+ cores, 64-bit compatible (Intel 8th gen+ or AMD Ryzen 2000+)
RAM: 4 GB minimum (8 GB recommended)
Storage: 64 GB minimum free space
TPM: Trusted Platform Module version 2.0
Firmware: UEFI with Secure Boot capability
Display: 720p, 9 inches or larger

How to check:

Download Microsoft's PC Health Check tool from microsoft.com
Run it and click "Check now"
It will tell you immediately whether your PC is compatible

Most PCs manufactured from 2018 onwards will pass. If yours does not, the most common issue is TPM 2.0 — which can often be enabled in your BIOS settings (usually under Security or Advanced).

Step 2: Back Up Your Important Files

An in-place upgrade should preserve your files, but "should" is not "will." Always back up before a major OS change.

Quick backup options:

External USB drive: Copy your Documents, Desktop, Downloads, and Pictures folders
OneDrive: If you have Office 365, your OneDrive likely already syncs these folders
Windows built-in backup: Settings → Update & Security → Backup → Add a drive

Pay special attention to: browser bookmarks, application settings, email archives, and any files stored outside your user profile folder. 15 minutes of backup can save hours of regret.

Step 3: Purchase Your Windows 11 Pro Product Key

Head to Softkeys.uk and purchase a Windows 11 Pro product key for £19.99. Your key will be delivered digitally — typically within minutes. Keep the email or save the key somewhere safe. You will need it shortly.

For reference, Microsoft charges £219.99 for the same licence through the Microsoft Store. The key you receive from Softkeys.uk is a genuine Microsoft product key that activates through Microsoft's official servers — identical in every functional way.

Step 4: Run the Upgrade (In-Place Method)

This method preserves your files, settings, and installed applications.

Open Settings → Update & Security → Windows Update
If Windows 11 is offered as an update, click "Download and install"
If not, download the Windows 11 Installation Assistant from Microsoft's website
Run the Installation Assistant and follow the prompts
Choose "Keep personal files and apps" when prompted
The process will download Windows 11, prepare the installation, and restart your PC several times
Total time: approximately 30-60 minutes depending on your internet speed and PC performance

Important: Keep your laptop plugged in throughout. Do not interrupt the process. Go make a cup of tea — this is the perfect opportunity.

Step 5: Activate Windows 11 Pro with Your Product Key

Once Windows 11 is installed, you need to activate it with your Softkeys.uk product key:

Open Settings → System → Activation
Click "Change product key"
Enter the 25-character product key from Softkeys.uk
Click "Next" and then "Activate"
Windows will contact Microsoft's activation servers and confirm your licence
You should see: "Windows is activated with a digital licence"

If you upgraded from Windows 10 Home, entering the Pro key will automatically upgrade your edition to Windows 11 Pro and unlock all the Pro features immediately.

Step 6: Verify Your Pro Features

After activation, confirm you have the full Pro experience:

Open Settings → System → About
Under "Windows specifications," confirm it says "Windows 11 Pro"
Open Start Menu, type "BitLocker" — if it appears, Pro is active
Open Start Menu, type "gpedit.msc" — if Group Policy opens, Pro is confirmed

Alternative: Clean Install (Fresh Start)

If your PC is sluggish or you want a fresh start, a clean install is the better option. This wipes everything and gives you a pristine Windows 11 Pro installation.

Download the Windows 11 Media Creation Tool from Microsoft
Create a bootable USB drive (8GB minimum)
Boot from the USB drive (usually F12 or Del at startup to access boot menu)
Select "Custom: Install Windows only"
Format your main drive and install
Enter your Softkeys.uk product key when prompted during setup
Complete the out-of-box experience (OOBE) setup

A clean install takes 15-30 minutes and gives you a fast, clean system. The trade-off is that you will need to reinstall your applications. If your PC is more than 3 years old and has never been reset, a clean install is worth the extra effort.

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What to Do If Your PC Is Not Compatible

If the PC Health Check says your machine cannot run Windows 11, you have several options:

Enable TPM 2.0 in BIOS: Many compatible PCs have TPM disabled by default. Restart, enter BIOS (usually F2 or Del), and look for TPM/Security settings.
Registry bypass: There is an official Microsoft registry workaround for PCs with TPM 1.2. This is documented on Microsoft's support pages.
New PC: If your hardware is truly too old (pre-2017), it may be time for a replacement. Refurbished business PCs with Windows 11 compatibility start from around £150-200 in the UK.
Linux: For older hardware that you want to keep using, Ubuntu or Linux Mint are free, secure alternatives that will receive updates long after Windows 10 support ends.

After the Upgrade: Essential First Steps

Once Windows 11 Pro is installed and activated, take these steps to optimise your experience:

Run Windows Update: Get the latest cumulative updates and driver updates
Enable BitLocker: Right-click your C: drive in File Explorer → Turn on BitLocker
Set up Windows Hello: Fingerprint or facial recognition for faster, more secure sign-in
Configure backup: Settings → System → Storage → Windows Backup
Install your software: Now is the perfect time to install Office 2024 Pro Plus (£29.99 from Softkeys.uk) if you have not already

The Bottom Line: Do Not Wait Until October

The Windows 10 end-of-life deadline is 14 October 2025. Waiting until the last minute means joining millions of other procrastinators in a rush that will overwhelm IT support, slow down Microsoft's servers, and create entirely avoidable stress.

Upgrade now. It costs £19.99. It takes an hour. It gives you a more secure, more capable, more future-proof operating system. And with a genuine product key from Softkeys.uk — backed by 8,174 verified reviews and a lifetime warranty — there is genuinely no reason to delay.

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Frequently Asked Questions

Can I upgrade directly from Windows 10 to Windows 11 Pro?

Yes. If your PC meets Windows 11 hardware requirements (TPM 2.0, Secure Boot, compatible CPU), you can upgrade directly from Windows 10 Home or Pro to Windows 11 Pro using a product key. Your files and most applications will be preserved during the upgrade.

What happens when Windows 10 support ends in October 2025?

After 14 October 2025, Microsoft will stop releasing security updates for Windows 10. Your PC will still work, but it will become increasingly vulnerable to security threats. For UK businesses, running unsupported software may also raise UK GDPR compliance concerns.

Does my PC support Windows 11?

Download Microsoft's PC Health Check tool to verify compatibility. Your PC needs: TPM 2.0, Secure Boot capable UEFI firmware, a compatible 64-bit processor, 4GB RAM minimum, and 64GB storage. Most PCs from 2018 onwards meet these requirements.

Will I lose my files when upgrading to Windows 11?

An in-place upgrade preserves your files, settings, and most installed applications. However, you should always back up important files before any major OS upgrade — external hard drives, USB drives, or cloud storage all work.

Can I upgrade from Windows 10 Home to Windows 11 Pro?

Yes. When you enter a Windows 11 Pro product key during the upgrade process, it will upgrade both the version (10 to 11) and the edition (Home to Pro) simultaneously. You get all Windows 11 Pro features immediately.

How long does the Windows 11 upgrade take?

A typical in-place upgrade takes 30 to 60 minutes, depending on your PC's speed and the amount of data. A clean install is faster (15-30 minutes) but requires reinstalling applications. Ensure your laptop is plugged in throughout.