Annoying Windows Security messages

[BadHellie]

Hi, I have pretty removed everything in my ISO (480 components so far, most important Defender), but evidently I am still missing something.
I tried to install a driver and I got this annoying Windows Security message.
Can you tell me which component is responsible for that, which evidently I forgot to remove ?
I don't want Windows to interfere with what I want to install, checking for publishers, signatures or whatever else.
If possible I would like to really remove the responsible component if any, rather than just setting some policy.
Thanks

 

[tistou77]

In the properties of the .exe, you should have a checkbox or button to unblock the file ?
Image taken from the internet

View attachment 13431

If so, I modify registry keys to no longer have this

 

[BadHellie]

Yes I do have the Unblock option on the driver installer exe, I unblocked it, but on install I am still getting that annoying requester.
But my question was if there is any Component responsible for these checks, so that I can remove it, or this is really unavoidable.
Since I have *removed* defender and security center and a lot of crap (more than 480 components), I expected not to see such annoyances anymore...
Not so much of an issue, I just fear I haven't removed enough yet lol

 

[tistou77]

I do not believe that there is a component linked to this, I have been using these registry keys for years that work very well

[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Attachments]
"UseTrustedHandlers"=dword:00000001
"SaveZoneInformation"=dword:00000001

 

[BadHellie]

Thank you Tistou and sorry for my delay.
In my Registry there wasn't any Attachments key there, I created it with the two values you suggested, unfortunately even after a reboot I am still presented with that annoying Windows Security requester if I try to install the Epson driver. No prob, I will live with it, evidently there is no solution because I even googled a lot but I could not find this topic covered anywhere.