When you install Office 2013, you typically get a trial period (often 30 to 60 days). Once this period expires, the software enters a "reduced functionality mode." In this state, you can view documents, but you cannot create new ones or save changes.

cscript ospp.vbs /act

Once the server is set, force the activation process by typing:

Microsoft Office 2013 remains one of the most popular productivity suites in the world. Despite the release of newer versions like Office 2016, 2019, and Microsoft 365, many users prefer the interface and stability of the 2013 version. However, installing the software is only half the battle. Without activation, users are often plagued by nagging notifications, restricted features, and the inability to save documents.

Since you don't have a key, you need to install a generic Volume License Key (GVLK) that Microsoft makes public for enterprise deployment. Copy and paste the following command into the CMD window and press Enter:

Now you need to point your Office installation to a public KMS server to validate the key. Type the following command and press Enter: