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Troubleshooting

Find fast fixes for the most common installation and activation issues. Use the search box below to locate your error message. If you still need help, contact Druino support and we’ll guide you.

Works for: Office / Windows / Project / Visio Delivery: Digital (Email) Support: Email & Phone

Quick Checklist (Do this first)

  • Restart your device.
  • Check your internet connection and disable VPN/proxy temporarily.
  • Confirm you installed the correct product edition/version.
  • Remove old trials or conflicting Office versions (common cause of errors).
  • Check system date/time is correct.
  • Try activation again, then phone activation if available.
Best tip: Most activation issues are caused by mixed editions or old trials. A clean reinstall often fixes it.

Common Issues & Fixes

“Unlicensed Product” / “Activation Required”

ActivationOffice
Fix steps
  1. Close all Office apps.
  2. Open Word/Excel → File → Account.
  3. Click Change Product Key (if shown) and re-enter the key.
  4. If prompted to sign in, sign out of any wrong Microsoft account and retry.
  5. Restart your PC and open Office again.

If Office was installed from a trial or Microsoft Store edition, uninstall it first and install the correct edition before activating.

“This product key has already been used”

ActivationOffice
Fix steps
  • Confirm you installed the correct edition/version (mismatch causes this message).
  • If you reinstalled Windows/Office, reactivation may be required.
  • Try phone activation if the option appears.
  • If still blocked, contact us so we can verify and guide you.

Windows key error (example: 0xC004F050 / invalid product key)

ActivationWindows
Fix steps
  1. Open Settings → System → Activation.
  2. Click Change product key and re-enter your key.
  3. Confirm you are activating the correct edition (Home vs Pro mismatch causes failure).
  4. Restart and try again.

If your Windows edition doesn’t match your key, you may need to switch to the correct edition before activation.

Office won’t install / installation stops

InstallationOffice
Fix steps
  • Restart your device and try again.
  • Temporarily disable antivirus (only during install) and retry.
  • Ensure you have enough disk space.
  • Uninstall old Office trials and reboot before installing.
  • Run the installer as Administrator (Windows).

Sign-in problems / “We can’t sign you in”

AccountOfficeActivation
Fix steps
  • Check date/time settings are correct.
  • Disable VPN/proxy and retry.
  • Sign out from Office → restart → sign in again.
  • Try another browser if activation uses a web sign-in.

Didn’t receive the delivery email

Delivery
Fix steps
  • Check spam/junk/promotions folders.
  • Search your inbox for “Druino” or your order number.
  • Make sure you entered the correct email at checkout.
  • If not received within 24 hours, contact support for resend.

Phone activation not showing

ActivationOffice
Fix steps
  • Phone activation availability depends on Microsoft policies and product edition.
  • Make sure you installed the correct edition that matches your key.
  • Try online activation first, then reopen Office and check again.
  • If still missing, contact us and we’ll guide you to the correct method.

Still stuck?

Contact us with your order number and a screenshot of the error message. We’ll respond as fast as possible.

Contact Support

Support Contact

Email: support@druino.co.uk
Phone: +44 20 8040 4209
Address: 71–75 Shelton Street, London, England, WC2H 9JQ, United Kingdom

Disclaimer: Microsoft activation messages and steps may vary by product edition and Microsoft updates. This page is provided for guidance and customer support.

Druino • 71–75 Shelton Street, London, England, WC2H 9JQ • United Kingdom