If you encounter a problem during the installation of Microsoft Office that results in the following error message: We're sorry, but we can't verify the signature of files required to install your Office product. We need to verify these signatures to keep your computer safe. Please retry installing your product or, if installation continues to fail, try re-downloading your installer if you got it online. Make sure you only download Office products from a trusted source.
Error code: 30094-1015 (0)

This error is more common on Windows 10, but it also occurs on Windows 11.

How do I fix it?

You need to disable digital signature verification. In Windows 10 and Windows 11, this is done similarly according to the following instructions. After disabling the digital signature - reinstall Microsoft Office.

It is recommended to use only original Microsoft Office installers. You can download them from our catalog.

You can also purchase product keys from our online store from 8.9 € with instant delivery to your e-mail in automatic mode.