# Can not open Wildcard certificate / folder looks empty

## Question

A wildcard certificate is issued, but I receive an error when unpacking the certificate archive downloaded, what’s wrong?  
Once i open the zipfile, the folder looks empty.

## Answer

<span>Sectigo (former Comodo) Wildcard certificates have a “\*” in the file names, which is considered a prohibited characters in default Windows archiver, as a result - your activation tool returns an error or the folder will appear empty. Try using a free achiever tool like [7-Zip](https://www.7-zip.org/) etc.: it mitigates this problem by renaming the files containing ‘\*’ automatically.</span>