Skip to main content
To KTH's start page To KTH's start page

Reactivate Microsoft 365

Reactivate Microsoft 365 for Windows

To activate Microsoft 365 from KTH, you do not need a licence key or activation key.

If Microsoft 365 has not been used for a while, the licence may become deactivated. In this case, you will need to reactivate the licence. Do the following steps:

1. Open any program from the Office suite, for instance Word or Excel

2. You will get a notification: PRODUCT DEACTIVATED

3. Push the Reactivate button

4. Log on with and password. Your Microsoft 365 licence will be activated again.

Reactivate Microsoft 365 for Mac

Follow instructions on the link below.

Activate Microsoft 365 for Mac (