Osetupdll Digital Signature Not Valid Or Is Not Present: How to Fix It

    If you are trying to install Microsoft Office from a disc or an ISO file, you may encounter an error message saying "Osetupdll Digital Signature Not Valid Or Is Not Present". This error means that the Osetup.dll file, which is a part of the Office setup program, is either corrupted or missing. This can prevent you from installing or activating Office on your computer.

    There are several possible causes for this error, such as a damaged disc, a faulty optical drive, a virus infection, or an incompatible anti-virus software. In this article, we will show you some methods to fix this error and install Office successfully.




Osetupdll Digital Signature Not Valid Or Is Not Present