GUIDE
How to activate a Windows, Office, antivirus or VPN licence
After payment you get the code (Product Key or licence key) by e-mail or in your order at the store. Here is where to enter it.
Windows 11 and Windows 10
- Windows 11: open Start → Settings → System → Activation and click Change product key. Enter the 25-character key and confirm.
- Windows 10: Start → Settings → Update & Security → Activation → Change product key.
- A Pro key on a Home system upgrades Windows to Pro (automatically, your data stays). A Home key does not work on a Pro system.
Office 2021 and 2024
- Install Office as described by the store (some keys are entered at setup.office.com and linked to your Microsoft account, others directly in the app).
- In the app: open Word, File → Account → Change Product Key (or the activation prompt shown at first start).
- Make sure the licence is for your system – Windows or Mac.
Microsoft 365
- Open microsoft365.com/setup, sign in with your Microsoft account and enter the code. The subscription is added to your account and you download the apps from microsoft365.com.
Antivirus
- Enter the licence key in the antivirus app (usually under settings or Licence / Subscription) or in your account on the vendor’s website – for example ESET HOME, Bitdefender Central, My Kaspersky or your Norton account.
- For multi-device licences, add more computers and phones from the same account.
VPN
- Redeem the activation code on the service’s website after signing in (redeem code / subscription section). Then sign in with the same account in the app on each device.
If activation fails
- Check the edition (Home vs Pro), system (Windows vs Mac) and region of the offer. Copy and paste the key so characters don’t get mixed up.
- If everything matches and it still fails, contact the store’s support through your order with a screenshot of the error – the store handles complaints, we don’t sell keys.