How to delete Apache windows security cached certificates?

Basically I am trying to show that an APACHE directory cannot be accessed if I don't choose the client certificate shown in the image below.

enter image description here

On one hand ,if I decide not to choose the SSAT certificate from the list I am not allowed to access the protected the directory , which is how it suppose to be. But after restarting the APACHE server the "decision" of not choosing a client certificate is cached and I don't get a new pop up with list of client certificates.

On the other hand,if I choose the client certificate I have unlimited access , even after server or browser or computer restart.

How am I able to delete the cached certificates in Google Chrome? I tried deleting the SSL state from the Internet Options, trying to connect via Incognito , deleting the ...\AppData\Local\Google\Chrome\User Data\CertificateTransparency files.