Microsoft 365 
Server 
Bundles 
Microsoft 365 Premium from KeysLocker is delivered as an invitation, not a product key. You join an active Microsoft 365 Premium subscription with your own Microsoft account and get the full desktop apps plus 1 TB of OneDrive for 12 months. It takes about two minutes.
What you will need
- The Microsoft account email you entered when you ordered (Outlook.com, Hotmail, Live, or any email registered with Microsoft).
- The invitation email from us.
Join the subscription
- Open the invitation email from KeysLocker and click the invitation link.
- Sign in with the same Microsoft account you gave at checkout. If you are already signed in with a different account, sign out first or open the link in a private window.
- Choose Accept. Microsoft confirms that you have joined the subscription.
- Check it at account.microsoft.com/services — Microsoft 365 Premium now appears under your services.
Install the apps
- Go to microsoft365.com, sign in with the same account and choose Install apps.
- Run the installer. Word, Excel, PowerPoint, Outlook and OneNote install and activate automatically — there is no key to type.
- On a phone or tablet, install the Microsoft 365 or Office apps from the App Store or Google Play and sign in.
Your 1 TB of OneDrive
Your storage is upgraded to 1 TB within a few minutes of accepting. Your files stay private: other members of the subscription cannot see your OneDrive, email or documents.
Good to know
- You can be signed in on up to five devices at the same time.
- Copilot and the AI features are reserved for the subscription owner by Microsoft, so they are not included for members.
- Wrong account or the link expired? Reply to your order email or message us from your order page and we will send a new invitation.