How to activate
From checkout to an activated PC in a few minutes, plus answers to the questions we get most.
How it works
Four steps from checkout to activated.
Choose your key
Pick the edition you need. Each key activates one PC.
Pay securely
Check out with PayPal or a debit or credit card.
Get your key
It's emailed to you and saved in your account, usually within the hour.
Activate
Enter the key in Windows or Office. It activates online in seconds.
Activate and install
How to activate Windows 11 or 10
Enter your key, upgrade Home to Pro and confirm Windows is activated.
Read the guideOfficeInstall and activate Office
Download, install and activate Office 2024, 2021, 2019, Visio or Project.
Read the guideWindowsUpgrade Windows 11 Home to Pro
Switch to Pro in a few minutes without reinstalling or losing files.
Read the guideWindowsActivate Windows from the command line
Use slmgr when Settings won't cooperate.
Read the guideFix a problem
Fix Windows activation error codes
What 0xC004F050, 0xC004C003, 0x803F7001 and other codes mean, and what to do.
Read the guideTroubleshootingFix Office activation problems
“Unlicensed Product”, key already used, and other Office messages.
Read the guideOfficeHow to uninstall Office completely
The fix for most Office activation problems.
Read the guideWindowsHow to check if Windows is activated
Three quick ways to confirm activation and your edition.
Read the guideWindowsHow to find your Windows product key
Where your key is stored, and how to see it.
Read the guideWindowsCan you move a Windows licence to a new PC?
Retail vs OEM licences, and how to move one.
Read the guideChoose the right product
Windows 11 Home vs Pro: which one do you need?
The real differences, and who actually needs Pro.
Read the guideOfficeOffice 2024 vs Office 2021 vs Microsoft 365
Which Office to buy: support dates, apps and the real cost.
Read the guideMicrosoft 365Microsoft 365 Personal vs Family
Which plan fits your household.
Read the guideWindowsWindows 10 end of support: what to do now
Your options after October 2025, explained simply.
Read the guide